Introduction to Function

Determine f(4).

• 0.5

• 16

Explain the meaning of f(4) = 16.

• The height is 16 feet at 4 seconds.

• The height is 4 feet at 16 seconds.

The y-intercept shows.....

• the maximum height that the graph reaches.

• the time that the graph reaches ground level.

• the height that the object started at.

• the minimum height that the graph reaches.

Which of these tables represents a function?

• W

• Y

• Z

• X

Which of these graphs represents a function?

• Z

• W

• X

• Y

Which relation diagram represents a function?

• Z

• Y

• X

• W

Which of these mappings is a function?

• W

• Y

• X

• Z

Which of these tables is a function?

• X

• Z

• Y

• W

Which of the following relations describes a function?

• A

• D

• C

• B

Using the vertical line test, determine if the graph above shows a relation, a function, both a relation and a function, or neither a relation or a function.

• Neither a relation or a function

• Relation only

• Both a relation and a function

• Function only