Functions Unit Review

A theater group is having a car wash fundraiser. The group can spend only $34 on soap, which is enough to wash 40 cars. Each car is charged $5. The function

P(c)=5c-34 represents the profit from the car wash when c cars are washed. Find a reasonable domain and range.

• D: all real numbers

  R: all real numbers

What is the independent variable?

• Number of weeks

• The amount of money

• Money saved

Identify the function family(ies) of the graph that has an absolute minimum.

• Linear function

• Linear absolute value function

• Exponential function

• Quadratic function

Identify the function family(ies) of the graph that is decreasing over the entire domain.

• Linear function

• Linear absolute value function

• Exponential function

• Quadratic function

Identify the function family(ies) of the graph that has an increasing interval and a decreasing interval and forms a U shape.

• Linear function

• Linear absolute value function

• Exponential function

• Quadratic function

Identify the function family(ies) of the graph that does not have an absolute maximum or absolute maximum and is a smooth curve.

• Linear function

• Linear absolute value function

• Exponential function

• Quadratic function

Identify the function family(ies) of the graph that does not have an absolute maximum or absolute maximum and is made up of straight lines.

• Linear function

• Linear absolute value function

• Exponential function

• Quadratic function

Would the given value of x result in Set B being a function of Set A?

x= -3

• Function

• Not a Function

Would the given value of x result in Set B being a function of Set A?

x= -2

• Function

• Not a Function

Would the given value of x result in Set B being a function of Set A?

x= 1

• Function

• Not a Function