FSA Practice Test (8th Grade: Math) 2

Question 1

What is the value of 5^3 × 5^2?

Accepted Answer

5^5

Answer

When multiplying powers with the same base, add the exponents: 3 + 2 = 5.

Question 2

Which number is irrational?

Accepted Answer

√2

Answer

√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?

Accepted Answer

y = 2x + 3

Answer

Slope-intercept form y = mx + b gives slope 2 and y-intercept 3.

Question 4

Solve for x: 3x - 7 = 11.

Accepted Answer

6

Answer

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?

Accepted Answer

7

Answer

√49 = 7 and √50 is just slightly more, so it rounds to 7.