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.
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
| Category | Formulas Printed |
|---|---|
| Quadratic Formula | $x = \dfrac{-b \pm \sqrt{b^2 - 4ac}}{2a}$ |
| Trigonometric Identities | $\sin^2(\theta) + \cos^2(\theta) = 1$; $\tan(\theta) = \dfrac{\sin\theta}{\cos\theta}$; $\cot(\theta) = \dfrac{\cos\theta}{\sin\theta}$; $\csc(\theta) = \dfrac{1}{\sin\theta}$; $\sec(\theta) = \dfrac{1}{\cos\theta}$ |
| Cubic Factorizations | $a^3 + b^3 = (a + b)(a^2 - ab + b^2)$; $a^3 - b^3 = (a - b)(a^2 + ab + b^2)$ |
| Probability | $P(A \cup B) = P(A) + P(B) - P(A \cap B)$; $P(A |
| Independence | $P(A \cap B) = P(A) \cdot P(B)$; $P(A |
Right column
| Category | Formulas Printed |
|---|---|
| Arithmetic Sequence | $a_n = a_1 + d(n - 1)$ |
| Arithmetic Series | $S_n = \dfrac{n(a_1 + a_n)}{2}$ |
| Geometric Sequence | $a_n = a_1 r^{,n-1}$ |
| Geometric Series | $S_n = \dfrac{a_1(1 - r^n)}{1 - r}, ; r \neq 1$, together with the sigma form $S_n = \sum_{k=1}^{n} a_1 r^{,k-1}, ; r \neq 1$ |
| Exponential Growth and Decay | $A = P\left(1 + \dfrac{r}{n}\right)^{nt}$; $A = Pe^{rt}$; $A = A_0\left(\dfrac{1}{2}\right)^{t/h}$ |
Three of those entries are the ones students most often assume are missing:
- The quadratic formula is printed. You do not need to memorize it - but you do need to know that $b^2 - 4ac$ is the discriminant and what its sign tells you, because that interpretation is not on the sheet.
- 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 $\frac{\pi}{6}$, $\frac{\pi}{4}$, and $\frac{\pi}{3}$, or the two derived Pythagorean identities $1 + \tan^2\theta = \sec^2\theta$ and $1 + \cot^2\theta = \csc^2\theta$.
- 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
| Category | Formula or Fact | Why It Bites |
|---|---|---|
| Statistics | $z = \dfrac{x - \mu}{\sigma}$ | Appears on nearly every form; students search the sheet for it and lose minutes |
| Statistics | Empirical Rule: about 68% within $\mu \pm \sigma$, 95% within $\mu \pm 2\sigma$, 99.7% within $\mu \pm 3\sigma$ | Part II normal-curve labeling items depend on it |
| Geometry | $(x - h)^2 + (y - k)^2 = r^2$ | Needed for linear-circle systems |
| Functions | Vertex form $y = a(x-h)^2 + k$; axis of symmetry $x = -\dfrac{b}{2a}$ | Needed to connect complex roots to a parabola's vertex |
| Trigonometry | $180^\circ = \pi$ radians; $s = r\theta$; period $P = \dfrac{2\pi}{ | B |
| Trigonometry | Exact values on the unit circle and the reference-angle rules | The sheet gives identities, not values |
| Logarithms | $\log_b(MN) = \log_b M + \log_b N$; $\log_b!\left(\frac{M}{N}\right) = \log_b M - \log_b N$; $\log_b(M^k) = k\log_b M$; change of base $\log_b a = \dfrac{\ln a}{\ln b}$ | Nothing logarithmic is printed at all |
| Polynomials | Difference of squares $a^2 - b^2 = (a-b)(a+b)$; Remainder and Factor Theorems | Only the cubic factorizations are printed |
| Functions | Average rate of change $\dfrac{f(b) - f(a)}{b - a}$; transformation rules for $a,f(b(x-h)) + k$ | Both 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 $z$-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 $\pi$ symbol and the calculator's pi key when it applies. Unless a question says otherwise, approximations such as 3.1416, 3.14, and $\frac{22}{7}$ 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 $y = ab^x$, or PwrReg for $y = ax^b$. 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 $\pm 1\mathrm{E}99$ for an unbounded tail. invNorm always takes the area to the left, so a "top 8%" prompt takes $1 - 0.08 = 0.92$.
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, $y = \sin(x)$ graphed on $[-10, 10]$ looks like a nearly flat line, because one cycle needs 360 horizontal units instead of $2\pi \approx 6.28$.
5. A Three-Hour Pacing Plan
| Phase | Questions | Target Time | Pace | Objective |
|---|---|---|---|---|
| 1 | Part I (1-24) | 60-70 min | ~2.7 min each | Bank the 48-credit block; verify with tables and substitution |
| 2 | Part II (25-32) | 30-35 min | ~4 min each | Short algebraic workflows, every step written |
| 3 | Part III (33-35) | 25-30 min | ~9 min each | Multi-step solves; reject extraneous roots explicitly |
| 4 | Part IV (36) | 20-25 min | - | Build the model, solve, then write the interpretation sentence |
| 5 | Review | 15-20 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.
Which set of formulas is printed on the official Next Generation Algebra II reference sheet?
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 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 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?