109+ Free AK STAR Math Grade 9 Practice Questions

Prepare for the Alaska System of Academic Readiness (AK STAR) Mathematics, Grade 9 exam with instant access — no signup required.

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Key Facts: AK STAR Math Grade 9 Exam

AK STAR Grade 9 Math is Alaska's spring adaptive statewide mathematics assessment (~65 items, ~180 minutes estimated), scored Needs Support to Advanced and linked to MAP Growth.

Sample AK STAR Math Grade 9 Practice Questions

Try these sample questions to test your AK STAR Math Grade 9 exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 109+ question experience with AI tutoring.

1If f(x) = 3x − 5, what is f(4)?

A.7

B.12

C.17

D.−1

Explanation: Substitute x = 4: f(4) = 3(4) − 5 = 12 − 5 = 7. Function notation f(4) means evaluate the rule at input 4.

2If g(x) = −2x + 9, what is g(−3)?

A.15

B.3

C.−15

D.6

Explanation: g(−3) = −2(−3) + 9 = 6 + 9 = 15. The product −2 · (−3) is positive 6 before adding 9.

3Which ordered pair is on the graph of y = 2x + 1?

A.(3, 7)

B.(2, 3)

C.(1, 1)

D.(0, 2)

Explanation: For (3, 7): 2(3) + 1 = 7, so the point satisfies the equation and lies on the line.

4What is the slope of the linear function f(x) = −4x + 11?

A.−4

B.11

C.4

D.−11

Explanation: In slope-intercept form f(x) = mx + b, the coefficient m is the slope. Here m = −4.

5What is the y-intercept of f(x) = (1/2)x − 6?

A.−6

B.1/2

C.6

D.−1/2

Explanation: The y-intercept is f(0) = −6. In slope-intercept form, the constant term b = −6 is the y-intercept.

6A linear function has slope 3 and passes through (0, −2). Which equation represents the function?

A.f(x) = 3x − 2

B.f(x) = −2x + 3

C.f(x) = 3x + 2

D.f(x) = 2x − 3

Explanation: Slope-intercept form is f(x) = mx + b. With m = 3 and y-intercept −2, the equation is f(x) = 3x − 2.

7A table shows a linear function: when x = 0, f(x) = 5; when x = 1, f(x) = 8; when x = 2, f(x) = 11. Which equation matches the table?

A.f(x) = 3x + 5

B.f(x) = 5x + 3

C.f(x) = 3x − 5

D.f(x) = x + 5

Explanation: Each 1-unit increase in x raises f(x) by 3, so the slope is 3. When x = 0, f(x) = 5, so f(x) = 3x + 5.

8If f(x) = 5 − x and g(x) = 2x + 1, what is f(3) + g(3)?

A.9

B.2

C.7

D.4

Explanation: f(3) = 5 − 3 = 2 and g(3) = 2(3) + 1 = 7. Adding gives 2 + 7 = 9.

9Which description matches a linear function with a constant rate of change of −2?

A.As x increases by 1, y decreases by 2

B.As x increases by 1, y increases by 2

C.As x doubles, y doubles

D.As x increases by 1, y is multiplied by −2

Explanation: A constant rate of change of −2 means the output decreases by 2 for each 1-unit increase in the input—the definition of slope −2.

10A taxi charges a $3 base fee plus $2 per mile. Which function models the cost C in dollars for m miles?

A.C(m) = 2m + 3

B.C(m) = 3m + 2

C.C(m) = 2m − 3

D.C(m) = 5m

Explanation: The base fee is the constant 3 and the rate $2 per mile is the slope, so C(m) = 2m + 3.

About the AK STAR Math Grade 9 Exam

AK STAR Grade 9 Mathematics is Alaska's spring statewide summative math assessment for grade 9, administered by DEED with NWEA. It measures Alaska Mathematics Standards with an item-adaptive design that produces an on-grade achievement level and MAP Growth RIT scores by instructional area. Basic, scientific, and graphing calculators available at grade 9 as item-level tools allow. OpenExamPrep questions are free English MCQ study aids with genuine computation items; they do not replace official practice tests, adaptive delivery, or classroom instruction.

Questions

65 scored questions

Time Limit

About 180 minutes estimated; not strictly timed; may be administered in multiple school-day sessions.

Passing Score

Reported in four achievement levels: Needs Support, Approaching Proficient, Proficient, and Advanced (Alaska DEED AK STAR / Science score reports).

Exam Fee

Free for eligible Alaska public school students; AK STAR and the Alaska Science Assessment are state-required summative assessments administered by districts at no cost to families. (Alaska DEED in partnership with NWEA (MAP Growth connected spring summative))

AK STAR Math Grade 9 Exam Content Outline

~40%

Functions

Function notation, representations, rates of change, and building functions.

~30%

Algebra

Expressions, equations, inequalities, and structure.

~15%

Number & Quantity

Real numbers and units in context.

~15%

Modeling & Applications

Real-world problem solving connecting algebra and functions.

How to Pass the AK STAR Math Grade 9 Exam

What You Need to Know

Passing score: Reported in four achievement levels: Needs Support, Approaching Proficient, Proficient, and Advanced (Alaska DEED AK STAR / Science score reports).
Exam length: 65 questions
Time limit: About 180 minutes estimated; not strictly timed; may be administered in multiple school-day sessions.
Exam fee: Free for eligible Alaska public school students; AK STAR and the Alaska Science Assessment are state-required summative assessments administered by districts at no cost to families.

Keys to Passing

Complete 500+ practice questions
Score 80%+ consistently before scheduling
Focus on highest-weighted sections
Use our AI tutor for tough concepts

AK STAR Math Grade 9 Study Tips from Top Performers

1Practice multi-step word problems that require choosing operations carefully.

2Build fluency on grade-level computation before relying on calculators (especially grades 3–5, where calculators are not allowed).

3Explain answers with models, equations, and units—not only final numbers.

4Use DEED formula sheets for grades that provide them and official practice tests for item types.

5Review mistakes by identifying whether the error was computation, concept, or misread wording.

Frequently Asked Questions

What is AK STAR Grade 9 Mathematics?

Alaska's required spring mathematics summative for grade 9 within the AK STAR system (DEED + NWEA).

Are calculators allowed?

Basic, scientific, and graphing calculators available at grade 9 as item-level tools allow.

How long is the test?

About 180 minutes estimated total; not strictly timed; schools schedule multiple sessions as needed.

How many questions?

About 65 total mathematics items for Grade 9 on the online adaptive form per DEED administration directions.

How is it scored?

Four achievement levels (Needs Support through Advanced) plus MAP Growth RIT scores by instructional area.

Is there a fee?

No family fee for eligible Alaska public school students.

109+ Free AK STAR Math Grade 9 Practice Questions

AK STAR Mathematics Grade 9

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