8th Grade Math STAAR Review

Front

What is the formula for the area of a square?

Back

Area = side × side or Area = side².

Front

If the area of a square is 48 square feet, what is the length of each side?

Back

The length of each side is approximately 6.9 feet.

Front

How do you solve the equation 2(2t - 3) = 6(t + 2)?

Back

First, distribute: 4t - 6 = 6t + 12. Then, combine like terms to find t = -9.

Front

What is the formula for the surface area of a rectangular prism?

Back

Surface Area = 2(lw + lh + wh), where l = length, w = width, h = height.

Front

Calculate the surface area of a box with dimensions 3.2 ft (length), 2.1 ft (width), and 2.7 ft (height).

Back

The total surface area is approximately 42 ft².

Front

What does the slope of a distance vs. time graph represent?

Back

The slope represents speed or rate of travel.

Front

If Sally travels 55 miles in 2 hours and 70 miles in 3 hours, what is her speed?

Back

Her speed is 15 mi/h.

Front

What is a function in mathematics?

Back

A function is a relation where each input (x) has exactly one output (y).

Front

Which of the following is a function: {(-1, 0), (4, 3), (-7, -3), (-1, -8)} or {(3, 2), (-4, -2), (3, 1), (-4, 1)}?

Back

{(-1, 0), (4, 3), (-7, -3), (-1, -8)} is a function.

Front

What is the definition of a linear equation?

Back

A linear equation is an equation that makes a straight line when graphed.