MCAS Review - 2021 Released Questions (Grade 8 Math)

Consider this equation.

x³ = 27

Which of the following values of x makes the equation true?

• 3

• 9

What number multiplied by the expression 5 x 10³ is equivalent to the expression 5 x 10⁶ ?

• 3

• 100

• 1000

• 5000

Which of the following equations are linear functions? Select the THREE linear functions.

• y = x² - 1

• y = 2x + 1

• y = -x

Consider this system of equations.

p = 2n

p - 5 = 1.5n

What value of n makes the system of equations true?

• It is an integer because the decimal repeats

• It is a whole number because the decimal repeats

• It is a rational number because the decimal repeats

• It is an irrational number because the decimal repeats

Consider this equation.

x - 4 = 16

What is the solution to the equation?

Consider this equation.

3(4 + x) = 7x - 2(2x + 3)

How many solutions does the equation have?

What is the value of y when x = 2?