Functions Equations and Tables

Kevin owns a lawn business. He charges $10 per hour and a $25 dollar disposal fee. What is the correct equation Kevin would use to find out how much to charge his customers?

• y = 25x + 10

• x = 25y + 10

• y = 10x +25

• x = 10y + 25

Ashley is saving $18 that she earned for babysitting. She earns $7 every week for doing chores at home, which she also saves. Which function can be used to find y, the total amount of money Ashley will have saved at the end of x, weeks of doing chores?

• y = 7x + 18

• y = 18x + 7

• y = 25x

• y = 18x

A fish is swimming at a constant rate toward the ocean floor.

The equation y = 7x - 3 can be used to represent this situation, where y is the depth of the fish in meters below sea level, and x is the number of seconds the fish has been swimming. Which statement best describes the depth of the fish, given this equation?

• From a starting position of 7 meters below sea level, the fish is diving 3 meters per second.

• From a starting position of 7 meters below sea level, the fish is rising 3 meters per second.

• From a starting position of 3 meters below sea level, the fish is diving 7 meters per second.

• From a starting position of 3 meters below sea level, the fish is rising 7 meters per second.

Is the function represented by the equation linear or nonlinear?

• linear

• nonlinear

Is the function represented by the table linear or nonlinear?

• Linear

• Nonlinear

Is the function represented by the table linear or nonlinear?

• linear

• nonlinear

Is this function represented by the graph Linear or Nonlinear

• linear

• nonlinear

Is the function represented by the graph linear or nonlinear

• linear

• nonlinear

Which equation represents y as a linear function of x?

• y=8x

• x=5

• y=4x²

• y=x³

Which graph is linear?

• A

• B

• C

• D