9th grade Math practice sheet
Alaska content standards · from Gradelings · Name: ______________________
Question 1
What is 4⁴?
answer box
256
Hint: 4⁴ = 4 × 4 × 4 × 4 = 256.
Question 2
Classify the polynomial 4x² + 5 by its number of terms.
- trinomial
- monomial
- binomial
- quadrinomial
binomial
Hint: Count the terms: 4x² + 5 has 2. One term is a monomial, two a binomial, three a trinomial.
Question 3
Solve for x: 2(x + 4) = 6
answer box
-1
Hint: Divide both sides by 2: x + 4 = 3. Subtract 4: x = −1.
Question 4
What is the slope of the line through (-1, -2) and (1, 4)?
answer box
3
Hint: slope = rise ÷ run = (4 − (−2)) ÷ (1 − (−1)) = 6 ÷ 2 = 3.
Question 5
A school has 600 students. A survey asks 30 of them. What fraction of the students were surveyed? Type it in lowest terms.
answer box
1/20
Hint: Fraction = 30/600, which is 1/20 in lowest terms.
Question 6
A decimal repeats forever: 0.333… Is it rational?
- Only if it is rounded
- No, because it is not a fraction
- No, because it never ends
- Yes, it equals 1/3
Yes, it equals 1/3
Hint: A repeating decimal can be written as a fraction, so it is rational.
Question 7
Jay has 9 more than 4 times the number of stickers Sam has. If Sam has n stickers, which expression gives the number Jay has?
- 13n
- 9n + 4
- 4(n + 9)
- 4n + 9
4n + 9
Hint: "4 times" Sam's number is 4n. "9 more" is added after that: 4n + 9.
Question 8
Which point is in the region y > 3x + 5?
- (−2, −1)
- (1, 9)
- (4, 14)
- (0, 3)
(1, 9)
Hint: Put each point into the inequality. A point on the line is not included because the sign is strict, and the other side of the line is the wrong region.
Question 9
In a box plot, what does the box show?
- The middle 50% of the data, from Q1 to Q3
- The lowest 25% of the data
- All of the data from least to greatest
- Only the median
The middle 50% of the data, from Q1 to Q3
Hint: The box stretches from the first quartile (Q1) to the third quartile (Q3).
Question 10
f(x) = 4x − 2. For which x is f(x) = 14?
- 4
- 14
- -4
- 5
4
Hint: Solve 4x − 2 = 14.
Answer key
- 1. 256 (Exponents & Powers)
- 2. binomial (Polynomials)
- 3. -1 (Multi-Step Equations)
- 4. 3 (Linear Relations)
- 5. 1/20 (Statistics in Society)
- 6. Yes, it equals 1/3 (Number Sets)
- 7. 4n + 9 (Expressions)
- 8. (1, 9) (Lines & Intersections)
- 9. The middle 50% of the data, from Q1 to Q3 (Data & Scatter Plots)
- 10. 4 (Function Notation)
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