Identifying Functions from Graph and Table

What is happening at D?

• Stationary

• Accelerating

• Fast steady speed; moving away from the starting position

• Slower steady speed; moving away from the starting position

During the second segment, which is between 50 seconds and 70 seconds, which direction as Tom moving?

• Tom was moving back towards his house

• Tom was moving down a hill

• Tom was moving towards the bus stop

• Tom was not moving

For 1-6 Match the verbal description with the part of the graph it describes.
1. Stays the same.

• F

• A

• D

• C

Is the following a function?

• Yes, this is a function.

• No, it's not a function.

• Can't be determined with this information.

Which of the following is a function?

• A

• B

• C

• D

The following is not a function because...

• There are two values that equal 2.

• x = 10 and x = 40 has two values each.

• In the f(x) column, the 5 repeats.

• This table is actually a function.

Is the following graph a function?

• Yes it is a function.

• No, it is not a function.

• There is not enough information to answer this question.

Slowly increases at a CONSTANT rate.

• A

• B

• E

• D

6.  Quickly increases a a CONSTANT rate.

• B

• C

• A

• F

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.