8th grade Math STAAR Review

Front

What is the formula for calculating earnings based on hours worked and hourly wage?

Back

Earnings = Hours Worked × Hourly Wage

Front

If Joe worked 30 hours and earned $600, what is his hourly wage?

Back

Hourly Wage = Earnings / Hours Worked = $600 / 30 = $20

Front

What does dilation mean in geometry?

Back

Dilation is a transformation that alters the size of a figure but not its shape, using a center of dilation and a scale factor.

Front

What is the scale factor in the dilation that transforms figure S to figure T if the coordinates change from (x, y) to (2x, 2y)?

Back

The scale factor is 2.

Front

What is the equation of a line in slope-intercept form?

Back

y = mx + b, where m is the slope and b is the y-intercept.

Front

How do you solve the equation 2.50t + 350 = 3t + 225 for t?

Back

Rearranging gives t = 25.

Front

What is the purpose of the STAAR test in Texas?

Back

The STAAR test assesses students' knowledge and skills in core subjects to ensure they meet state educational standards.

Front

What is a variable in algebra?

Back

A variable is a symbol, often a letter, that represents an unknown value in mathematical expressions or equations.

Front

What does it mean to isolate a variable in an equation?

Back

To isolate a variable means to manipulate the equation so that the variable is on one side and all other terms are on the opposite side.

Front

What is the process of solving a linear equation?

Back

The process involves simplifying the equation, isolating the variable, and finding its value.