9th grade Math practice sheet
Maine Learning Results · from Gradelings · Name: ______________________
Question 1
What is 3⁴?
answer box
81
Hint: 3⁴ = 3 × 3 × 3 × 3 = 81.
Question 2
Classify the polynomial 6x² + 1 by its number of terms.
- quadrinomial
- trinomial
- monomial
- binomial
binomial
Hint: Count the terms: 6x² + 1 has 2. One term is a monomial, two a binomial, three a trinomial.
Question 3
Solve for x: 6(x + 8) = 78
answer box
5
Hint: Divide both sides by 6: x + 8 = 13. Subtract 8: x = 5.
Question 4
What is the slope of the line through (0, -1) and (2, -7)?
answer box
-3
Hint: slope = rise ÷ run = (-7 − (−1)) ÷ (2 − 0) = −6 ÷ 2 = −3.
Question 5
A school has 200 students. A survey asks 10 of them. What fraction of the students were surveyed? Type it in lowest terms.
answer box
1/20
Hint: Fraction = 10/200, which is 1/20 in lowest terms.
Question 6
Which number is irrational?
- −1.75
- 7/4
- 1.7
- √3
√3
Hint: Terminating decimals like 1.7 and 1.75 can be written as fractions. √3 cannot.
Question 7
Figure n in a pattern uses 6n + 1 tiles. How many tiles does figure 20 use?
answer box
121
Hint: Replace n with 20: 6 × 20 + 1 = 121.
Question 8
What is the y-intercept of the line 4x + 6y = 36?
answer box
6
Hint: On the y-axis x = 0, so 6y = 36 and y = 6.
Question 9
A line of best fit is used to…
- Prove one variable causes the other
- Describe the trend and predict values
- Make the data larger
- Join every point exactly
Describe the trend and predict values
Hint: The line models the overall trend. It need not pass through every point.
Question 10
f(x) = −2x − 3. For which x is f(x) = −3?
- 0
- 1
- -3
- 3
0
Hint: Solve −2x − 3 = −3.
Answer key
- 1. 81 (Exponents & Powers)
- 2. binomial (Polynomials)
- 3. 5 (Multi-Step Equations)
- 4. -3 (Linear Relations)
- 5. 1/20 (Statistics in Society)
- 6. √3 (Number Sets)
- 7. 121 (Expressions)
- 8. 6 (Lines & Intersections)
- 9. Describe the trend and predict values (Data & Scatter Plots)
- 10. 0 (Function Notation)
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