FSA Practice Test (8th Grade: Math) 2 — Questions and Answers
Question 1: What is the value of 5^3 × 5^2?
- 5^5 (Correct answer)
- 5^6
- 25^5
- 5^1
Correct answer: 5^5
When multiplying powers with the same base, add the exponents: 3 + 2 = 5.
Question 2: Which number is irrational?
- 0.75
- √16
- √2 (Correct answer)
- 3/4
Correct answer: √2
√2 cannot be written as a fraction and has a non-repeating, non-terminating decimal.
Question 3: A line passes through (0, 3) and has a slope of 2. What is its equation?
- y = 2x + 3 (Correct answer)
- y = 3x + 2
- y = 2x - 3
- y = 3x - 2
Correct answer: y = 2x + 3
Slope-intercept form y = mx + b gives slope 2 and y-intercept 3.
Question 4: Solve for x: 3x - 7 = 11.
- 6 (Correct answer)
- 4
- 9
- 3
Correct answer: 6
Add 7 to both sides to get 3x = 18, then divide by 3 to get x = 6.
Question 5: What is the approximate value of √50 to the nearest whole number?
- 6
- 7 (Correct answer)
- 8
- 25
Correct answer: 7
√49 = 7 and √50 is just slightly more, so it rounds to 7.
Question 6: Express 0.0045 in scientific notation.
- 4.5 × 10^-3 (Correct answer)
- 4.5 × 10^3
- 45 × 10^-4
- 4.5 × 10^-2
Correct answer: 4.5 × 10^-3
Move the decimal three places right to get 4.5, so the exponent is -3.
Question 7: If a function pairs each input with exactly one output, the relation is called a what?
- Function (Correct answer)
- Variable
- Constant
- Proportion
Correct answer: Function
A function assigns exactly one output to each input.
FSA Practice Test (8th Grade: Math) 2
What is the value of 5^3 × 5^2?