Graphs of Inputs and Outputs

Which relation diagram represents a function?

• Z

• Y

• X

• W

Is the relation a function? Why.

• Yes, because the x-value 11 has two y-values pair with it.

• Yes, because each x-value has only one y-value paired with it.

• No, because the x-value 11 has two y-values pair with it.

• No, because each x-value has only one y-value paired with it.

• A/F

• B/G

• C/H

• D/J

Find the missing OUTPUT value.

• -2

• 3

• 9

• -7

• Function
• Not a Function

The graph shows function A.

Which function best models the graph of A?

Mathematical Equivalence

ON

• Taylor can write 6 words per minute
• Taylor can write 25 words per minute
• Taylor can write 50 words per minute
• Taylor can write 150 words per minute

Use the graph. If you output is -1, what's your input?

• y = -1

• x = -4

• x = -1

• y = -4

Monica worked out at a gym continuously for 50 minutes. The graph shows the remaining percentage of the workout as a linear function of x, the time in minutes.

At what point does Monica have only 20% of her workout remaining?

Choose the correct answer by clicking the appropriate point

• A/F

• B/G

• C/H

• D/J