Module 8 TEST - Expressions & Equations

Front

What is the Greatest Common Factor (GCF)?

Back

The GCF is the largest number that divides two or more numbers without leaving a remainder.

Front

How do you factor an expression?

Back

To factor an expression, you find the GCF of the terms and rewrite the expression as a product of the GCF and the remaining terms.

Front

What is the formula for the perimeter of a rectangle?

Back

The perimeter P of a rectangle is given by P = 2(length + width).

Front

How do you solve a linear equation?

Back

To solve a linear equation, isolate the variable on one side of the equation using inverse operations.

Front

What does it mean to evaluate an expression?

Back

Evaluating an expression means substituting the values of the variables into the expression and simplifying it.

Front

What is the relationship between miles run by 7th and 8th graders in the context of the problem?

Back

8th graders run 15% more miles than 7th graders, represented by the expression 1.15x.

Front

What is the solution to the equation 50 = -2.5x?

Back

x = -20.

Front

How do you represent a percentage increase in an expression?

Back

To represent a percentage increase, multiply the original amount by (1 + percentage as a decimal).

Front

What is the value of the expression 2r + 1 when r = 3?

Back

The value is 7.

Front

What is an expression in mathematics?

Back

An expression is a combination of numbers, variables, and operators (like +, -, *, /) that represents a value.