Construct Function

• Rate of Change: $20, Initial Value: $3

• Rate of Change: $3, Initial Value: $8

• Rate of Change: $8, Initial Value: $20

The graph shows the total cost for a lawn mowing service to mow a lawn. Which equation represents this situation?

• y = 6x + 28

• y = 1x + 20

• y = 8x + 20

• y = 8x + 36

Write an equation for the cleaning cost, y, for the number of hours, x. Put in y = mx + b form.

• y = 12x + 20

• y = 20x + 8

• y = 8x

• y = 8x + 20

Write an equation in y = mx + b form for the cost, y, to belong to the gym for x months.

• y = 35x + 40

• y = 40x + 35

• y = 35 x + 70

• y = 75x

• A.
• B.
• C.
• D.

Which of the following does not represent a function?

Which of the following is the correct definition of a function?

• A relation where each input has exactly one output

• A relation where each input has multiple outputs

• A relation where each output has multiple inputs

• A relation where inputs and outputs are the same

How would you write y = 2x - 3 in function notation?

• y = 2x-3

• f = 2x - 3

• f(x) = 2x-3

Write the following in function notation.

ABC Furnace charges $75 to make a house call and then $50 an hour after that.

• f(x) = 75x + 50

• f(x) = 50x - 75

• f(x)= 50x + 75

Which of the following represents a function?