Topic 4 Review

Front

4 is the __________ of 4n.

Back

coefficient

Front

Simplify: 1y - 2x - 3y + 4x

Back

-2y + 2x

Front

Find the area of a rectangle with length of 4x - 5 and width of 7.

Back

28x - 35

Front

Find the sum: 1/2 (4x + 4) + (2x + 8)

Back

4x + 10

Front

It costs $125 to set up service for a smart phone and $40 additional per month. If m = the number of months, how much would it cost for someone for m months of cell service?

Back

125 + 40m

Front

What is a coefficient in an algebraic expression?

Back

A coefficient is a numerical factor that multiplies a variable.

Front

What does it mean to simplify an expression?

Back

To simplify an expression means to combine like terms and reduce it to its simplest form.

Front

What is the formula for the area of a rectangle?

Back

Area = length × width.

Front

How do you combine like terms in an expression?

Back

You add or subtract the coefficients of the terms that have the same variable.

Front

What is the value of 'm' in the expression 125 + 40m when m = 3?

Back

125 + 40(3) = 125 + 120 = 245.