Functions Unit

Is the relation a function?

• Yes, each input has exactly one output

• Yes, each output has exactly one input

• No, each output has more than one input

• No, each input only shares an output

Use the graph to write a linear function that relates y to x.

Does the table represent a linear or nonlinear function?

• linear

• nonlinear

The table shows the number y lollipops made in x batches. What is the missing y-value that makes the table represent a linear function?

• 44

• 42

• 64

• 48

Which of the following represents a function?

• Function
• Not a Function

• Function
• Not a Function

• A line with a positive slope that crosses the y-axis at 3

• A line with a negative slope that crosses the y-axis at 3

• A line with a positive slope that crosses the y-axis at -3

• A line with a negative slope that crosses the y-axis at -3

Use the table to write a linear function that relates y to x.

• y = x - 4

• y = -x + 4

• y = x + 4

• y = -x - 4

Is the relation a function?

• Yes, each input has exactly one output

• Yes, each output has exactly one input

• No, an input has more than one output

• No, an output does not have the same input