8th Grade FSA Functions Review Day 2

8th Grade FSA Functions Review Day 2

What are some characteristics of a Linear Function?

• How would a graph of a linear function look like?

• How would an equation of a linear function look like?

• In a verbal description, what are some key words that help us identify the slope and y-intercept?

REVIEW

Please answer each question to the best of your ability. READ CAREFULLY!

Multiple Choice

The graphs shown are of two different functions. Study the graphs and select the statement that is true.

• Both Graph A and Graph B have multiple y-intercepts.

• Both Graph A and Graph B have only one x- intercept.

• Graph A is a linear function because it has a constant rate of change.

• Graph B is not a linear function but also has a constant rate of change.

Multiple Select

Look at the equations below. Select all the equations that define y as a linear function of x.

• $y=7\times4x$

• $y=\left(2x+5\right)^2$

• y= 5x-3

• $y=\frac{x}{2}$

• $y=2x^3$

Multiple Choice

Does the following demonstrate a linear or a non-linear function?

• Linear

• Non -Linear

Multiple Choice

Does the following demonstrate a linear or a non-linear function?

• Linear

• Non -Linear

Multiple Choice

Does the following demonstrate a linear or a non-linear function?

• Linear

• Non -Linear

Multiple Choice

Does the following demonstrate a linear or a non-linear function?

• Linear

• Non -Linear

Multiple Select

Select all the equations that demonstrate a linear function.

• y=5x

• $y=2x^2+6$

• x+7y = 21

• xy=13

• x=-3

Multiple Choice

The equation y=20x+500 models the relationship between the number of video games, x, and the cost in dollars, y, to manufacture that number.

What is the value of y when x=5?

• y=500

• y=600

• y=580

• y=620

Multiple Choice

Marcus wants to predict how much his gym membership will cost each month. He pays $19.99 each month for his membership and $45 for each personal training session. Let x represent the number of times he has a personal training session each month and y represent the total cost for his gym membership.

Write an equation Marcus can use to predict how much he will pay each month.

• y=19.99x

• y=45x+19.99

• y=45x

• y=19.99x+45