Functions and equations

Is the relation a function? Explain.

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

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

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

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

Does the table represent a function?

• Yes

• No

Does the graph represent a function?

• Yes

• No

Does the graph represent a function?

• Yes

• No

You can identify a function from a graph by using the.....

• Horizontal Line Test
• Eye Test
• Vertical Line Test
• Diagonal Line Test

The table represents the equation k = j - 20.

Use the equation to find the missing value.

• 34

• 27

• 41

• 38

Does this represent a function?

• Yes

• No

• A

• B

• C

• D

Is this relation a function?

• Function

• Not a function

What is the y-intercept shown on the graph?

• (0, -2)
• (3, 0)
• (0, 3)
• None of these.