Module 5 Test Review

Front

What is the equation for Juanita's monthly cell phone bill if she uses x minutes of airtime?

Back

C = 15 + 0.20x

Front

What inequality represents the average amount each choir member needs to raise to meet their goal of $1,500 after raising $600?

Back

30x + 600 ≥ 1,500

Front

Back

Calvin had $10 in his wallet. He spent $3 each day for lunch.

Front

What does it mean if there is no line of best fit for a scatter plot?

Back

There is no trend in the data.

Front

If Dexter's Gym charges a one-time registration fee of $40 and $20 each month, how many months was the membership for if the total fee is $340?

Back

15 months

Front

Define a linear equation.

Back

An equation that models a straight line, typically in the form y = mx + b.

Front

What is the meaning of slope in a linear equation?

Back

The slope represents the rate of change of the dependent variable with respect to the independent variable.

Front

What is the y-intercept in a linear equation?

Back

The y-intercept is the value of y when x = 0, representing where the line crosses the y-axis.

Front

How do you determine the total cost from a fixed fee and a variable cost?

Back

Total Cost = Fixed Fee + (Variable Cost per Unit * Number of Units).

Front

What is an inequality?

Back

An inequality is a mathematical statement that compares two expressions, showing that one is greater than, less than, or equal to the other.