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1.2 The Next Generation Reference Sheet, Calculator Rules & Pacing

Key Takeaways

  • The Next Generation Algebra II reference sheet supplies the quadratic formula, the Pythagorean and reciprocal/quotient trigonometric identities, the sum and difference of cubes factorizations, the probability addition and conditional-probability rules, the independence conditions, arithmetic and geometric sequence and series formulas, and three exponential growth/decay models.

  • The z-score formula, the Empirical Rule percentages, the circle equation, vertex form, the axis-of-symmetry formula, degree-radian conversion, the change-of-base formula, and the logarithm product/quotient/power rules are NOT on the reference sheet and must be memorized.

  • A graphing calculator and a straightedge must be available to every student for the full duration of the examination; calculators capable of symbolic manipulation or of communicating with other calculators are prohibited.

  • NYSED requires students to use the calculator pi key; approximations such as 3.14, 3.1416, or 22/7 are unacceptable unless a question says otherwise.

  • A workable three-hour pacing plan is roughly 65 minutes for Part I, 32 minutes for Part II, 27 minutes for Part III, 22 minutes for Part IV, and 15 to 20 minutes held back for a final verification pass.

Last updated: September 2026

1.2 The Next Generation Reference Sheet, Calculator Rules & Pacing

A detachable Algebra II Reference Sheet (NGLS) is bound into the back of every examination booklet. The Educator Guide describes it as information students are expected to apply, not necessarily memorize. The corollary matters just as much: anything not printed on that sheet is something you are expected to have memorized. Students lose credit every June because they assume a formula will be there and it is not.


1. What the Reference Sheet Actually Provides

The sheet is a two-column grid. Here is its complete contents, transcribed from the sheet bound into the June 2026 booklet.

Left column

CategoryFormulas Printed
Quadratic Formulax=−b±b2−4ac2ax = \dfrac{-b \pm \sqrt{b^2 - 4ac}}{2a}
Trigonometric Identitiessin⁡2(θ)+cos⁡2(θ)=1\sin^2(\theta) + \cos^2(\theta) = 1; tan⁡(θ)=sin⁡θcos⁡θ\tan(\theta) = \dfrac{\sin\theta}{\cos\theta}; cot⁡(θ)=cos⁡θsin⁡θ\cot(\theta) = \dfrac{\cos\theta}{\sin\theta}; csc⁡(θ)=1sin⁡θ\csc(\theta) = \dfrac{1}{\sin\theta}; sec⁡(θ)=1cos⁡θ\sec(\theta) = \dfrac{1}{\cos\theta}
Cubic Factorizationsa3+b3=(a+b)(a2−ab+b2)a^3 + b^3 = (a + b)(a^2 - ab + b^2); a3−b3=(a−b)(a2+ab+b2)a^3 - b^3 = (a - b)(a^2 + ab + b^2)
ProbabilityP(A∪B)=P(A)+P(B)−P(A∩B)P(A \cup B) = P(A) + P(B) - P(A \cap B); P(A∣B)=P(A∩B)P(B)P(A\vert B) = \dfrac{P(A \cap B)}{P(B)}
IndependenceP(A∩B)=P(A)⋅P(B)P(A \cap B) = P(A) \cdot P(B); P(A∣B)=P(A)P(A\vert B) = P(A)

Right column

CategoryFormulas Printed
Arithmetic Sequencean=a1+d(n−1)a_n = a_1 + d(n - 1)
Arithmetic SeriesSn=n(a1+an)2S_n = \dfrac{n(a_1 + a_n)}{2}
Geometric Sequencean=a1r n−1a_n = a_1 r^{\,n-1}
Geometric SeriesSn=a1(1−rn)1−r,  r≠1S_n = \dfrac{a_1(1 - r^n)}{1 - r}, \; r \neq 1, together with the sigma form Sn=∑k=1na1r k−1,  r≠1S_n = \sum_{k=1}^{n} a_1 r^{\,k-1}, \; r \neq 1
Exponential Growth and DecayA=P(1+rn)ntA = P\left(1 + \dfrac{r}{n}\right)^{nt}; A=PertA = Pe^{rt}; A=A0(12)t/hA = A_0\left(\dfrac{1}{2}\right)^{t/h}

Three of those entries are the ones students most often assume are missing:

  1. The quadratic formula is printed. You do not need to memorize it - but you do need to know that b2−4acb^2 - 4ac is the discriminant and what its sign tells you, because that interpretation is not on the sheet.
  2. The core trigonometric identities are printed, including the Pythagorean identity and all four reciprocal/quotient definitions. What is not printed is the unit circle, the exact values at π6\frac{\pi}{6}, π4\frac{\pi}{4}, and π3\frac{\pi}{3}, or the two derived Pythagorean identities 1+tan⁡2θ=sec⁡2θ1 + \tan^2\theta = \sec^2\theta and 1+cot⁡2θ=csc⁡2θ1 + \cot^2\theta = \csc^2\theta.
  3. Both cubic factorizations are printed. The sum and difference of cubes are the one factoring pattern you can look up mid-exam.

2. What Is Not on the Sheet - Memorize These

CategoryFormula or FactWhy It Bites
Statisticsz=x−μσz = \dfrac{x - \mu}{\sigma}Appears on nearly every form; students search the sheet for it and lose minutes
StatisticsEmpirical Rule: about 68% within μ±σ\mu \pm \sigma, 95% within μ±2σ\mu \pm 2\sigma, 99.7% within μ±3σ\mu \pm 3\sigmaPart II normal-curve labeling items depend on it
Geometry(x−h)2+(y−k)2=r2(x - h)^2 + (y - k)^2 = r^2Needed for linear-circle systems
FunctionsVertex form y=a(x−h)2+ky = a(x-h)^2 + k; axis of symmetry x=−b2ax = -\dfrac{b}{2a}Needed to connect complex roots to a parabola's vertex
Trigonometry180∘=π180^\circ = \pi radians; s=rθs = r\theta; period P=2π∣B∣P = \dfrac{2\pi}{\vert B\vert}; frequency =1P= \dfrac{1}{P}Sinusoidal modeling items live here
TrigonometryExact values on the unit circle and the reference-angle rulesThe sheet gives identities, not values
Logarithmslog⁡b(MN)=log⁡bM+log⁡bN\log_b(MN) = \log_b M + \log_b N; log⁡b ⁣(MN)=log⁡bM−log⁡bN\log_b\!\left(\frac{M}{N}\right) = \log_b M - \log_b N; log⁡b(Mk)=klog⁡bM\log_b(M^k) = k\log_b M; change of base log⁡ba=ln⁡aln⁡b\log_b a = \dfrac{\ln a}{\ln b}Nothing logarithmic is printed at all
PolynomialsDifference of squares a2−b2=(a−b)(a+b)a^2 - b^2 = (a-b)(a+b); Remainder and Factor TheoremsOnly the cubic factorizations are printed
FunctionsAverage rate of change f(b)−f(a)b−a\dfrac{f(b) - f(a)}{b - a}; transformation rules for a f(b(x−h))+ka\,f(b(x-h)) + kBoth are recurring Part IV requests

Important

A fast way to internalize this: the sheet gives you identities and closed-form models. It never gives you definitions, interpretations, or conversions. Discriminant meaning, what a zz-score means, how to convert degrees to radians, and what a growth rate is versus a growth factor are all yours to supply.


3. Calculator and Straightedge Rules

The Educator Guide is explicit: a graphing calculator and a straightedge (ruler) must be available to every student taking the Regents Examination in Algebra II, and students must have exclusive use of the calculator for the full duration of the examination. The June 2026 booklet repeats the requirement on its cover.

Prohibited during testing:

  • Calculators capable of symbol manipulation (computer algebra systems).
  • Calculators that can communicate with other calculators through infrared sensors or any other channel.
  • Operating manuals, instruction cards, or formula cards for the calculator.
  • Any communications device. Possession or use of one, however briefly, invalidates the examination.

The Pi Rule

NYSED requires students to use the π\pi symbol and the calculator's pi key when it applies. Unless a question says otherwise, approximations such as 3.1416, 3.14, and 227\frac{22}{7} are unacceptable and will be marked wrong.


4. The Five Calculator Workflows That Earn Credits

+---------------------------------------------------------------+
|  1. STAT EDIT / STAT CALC  -> regressions (Lin, Quad, Exp, Pwr)|
|  2. 2nd TRACE (CALC)       -> zero, intersect, minimum, maximum|
|  3. 2nd VARS (DISTR)       -> normalcdf, invNorm               |
|  4. 2nd GRAPH (TABLE)      -> equivalence and root checks      |
|  5. MODE                   -> RADIAN vs DEGREE discipline      |
+---------------------------------------------------------------+

4.1 Regressions

Enter the explanatory values in L1 and the response values in L2 under STAT -> 1: Edit. Then STAT -> CALC and choose the model the prompt names: LinReg(ax+b), QuadReg, ExpReg for y=abxy = ab^x, or PwrReg for y=axby = ax^b. Before pressing Calculate, set Store RegEQ to Y1 (VARS -> Y-VARS -> 1: Function -> 1: Y1). That stores the unrounded model.

Tip

Report rounded, compute unrounded. When a prompt says "round all values to the nearest thousandth," write the rounded equation as your answer, but evaluate any prediction from the unrounded Y1. Rounding the coefficients first and then predicting is a rounding error and costs a credit.

4.2 Zeros, Intersections, and Extrema

2nd TRACE gives 2: zero (set a left bound, a right bound, then guess), 5: intersect (first curve, second curve, guess), and 3: minimum / 4: maximum. Use intersect to check the answer to an "algebraically determine" prompt - never as the answer itself.

4.3 Normal Distribution Commands

2nd VARS (DISTR) gives normalcdf(lower, upper, mu, sigma) for an area and invNorm(area, mu, sigma) for a cutoff. Use ±1E99\pm 1\mathrm{E}99 for an unbounded tail. invNorm always takes the area to the left, so a "top 8%" prompt takes 1−0.08=0.921 - 0.08 = 0.92.

4.4 Table Checks

For "which expression is equivalent to" items, put the original in Y1 and a candidate in Y2, then read 2nd GRAPH. Matching columns across positive, negative, and fractional inputs is strong evidence of equivalence; an ERROR row appearing in both columns at the same input confirms a shared domain restriction.

4.5 Angle Mode

Set MODE to RADIAN at the start and leave it there. Every sinusoidal modeling item on this exam uses a real-number input. In Degree mode, y=sin⁡(x)y = \sin(x) graphed on [−10,10][-10, 10] looks like a nearly flat line, because one cycle needs 360 horizontal units instead of 2π≈6.282\pi \approx 6.28.


5. A Three-Hour Pacing Plan

PhaseQuestionsTarget TimePaceObjective
1Part I (1-24)60-70 min~2.7 min eachBank the 48-credit block; verify with tables and substitution
2Part II (25-32)30-35 min~4 min eachShort algebraic workflows, every step written
3Part III (33-35)25-30 min~9 min eachMulti-step solves; reject extraneous roots explicitly
4Part IV (36)20-25 min-Build the model, solve, then write the interpretation sentence
5Review15-20 min-Bubble alignment, rounding precision, units, radian mode

The Three-Pass Strategy

  • Pass 1 - sweep. Work straight through and answer everything you can set up immediately. If a question stalls you for more than about ninety seconds, mark the given quantities on the page and move on.
  • Pass 2 - return. Come back to the flagged constructed responses. Break each prompt into its separate requests and answer them one at a time; a partially answered Part IV still scores.
  • Pass 3 - audit. Confirm that Part I bubble numbers line up with booklet numbers, that every rounding instruction was obeyed to the exact stated place, that units are attached where a prompt asked for them, and that no extraneous root was left in a final answer.
Test Your Knowledge

Which set of formulas is printed on the official Next Generation Algebra II reference sheet?

A

The z-score formula, the Empirical Rule percentages, and the change-of-base formula

B

The center-radius equation of a circle, the vertex form of a parabola, and the axis-of-symmetry formula

C

The quadratic formula, the Pythagorean identity, and the sum and difference of cubes factorizations

D

The degree-to-radian conversion, the arc length formula, and the product and quotient rules for logarithms

Test Your Knowledge

A student needs to find the proportion of a normally distributed population lying below a given value during Part II of the Algebra II Regents. Which statement about the tools available is correct?

A

The z-score formula and the Empirical Rule percentages are supplied on the reference sheet, so no memorization is required

B

The z-score formula must be memorized, and a graphing calculator, which every student must have available for the full examination, supplies the area through normalcdf

C

The examination prohibits statistical calculator commands, so the area must be read from a printed standard normal table supplied with the booklet

D

A scientific calculator is sufficient because the Algebra II Regents does not require graphing capability

Test Your Knowledge

A Part II question gives a data table and directs a student to write an exponential regression equation with all values rounded to the nearest thousandth, then a later part asks for a prediction. What is the correct calculator procedure?

A

Run ExpReg, store the regression equation in Y1, report the equation rounded to the thousandth as directed, and evaluate the prediction from the unrounded Y1

B

Run ExpReg, round the coefficients to the thousandth, retype the rounded equation into Y1, and evaluate the prediction from that rounded equation

C

Run LinReg first to obtain the correlation coefficient, then convert the linear model into exponential form algebraically

D

Compute the ratio between consecutive response values by hand, since regression commands are not permitted on constructed-response questions

Test Your Knowledge

A problem asks for the area of a sector in terms of an exact numeric value, and a student writes 3.14 in place of pi. What does NYSED guidance say about this response?

A

It is acceptable, because 3.14 is the conventional approximation used throughout secondary mathematics

B

It is acceptable only when the answer is rounded to the nearest hundredth

C

It is unacceptable unless the question specifies otherwise, because students are directed to use the pi symbol and the calculator pi key

D

It is unacceptable only on Part I, where no work is shown to justify the substitution

Sections you finish are checked off in the contents.