Introduction to Functions

Is it a function?

• It IS a function.

• It IS NOT a function

Is it a function?

• It IS a function.

• It IS NOT a function

Is it a function?

• It IS a function.

• It IS NOT a function

Does the graph represent a function?

• Yes, because the vertical line test shows there are no repeating input values

• No, because the vertical line test shows there are repeating input values

Q1. What is the output of the following code?

• A) Function

• B) Not a Function

• -67

• 67

• 77

• -77

Determine f(-1).

• -10

• -7

• -4

• -1

• 2

Find f(3)

• 5

• 4

• 3

• 0

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.

Tyler is filling a bathtub with water. Function B gives the depth of the water, in inches, t minutes after he begins filling the tub. Explain the meaning of B(9) = 11.

• The temperature of the water is 11 after 9 minutes.

• The tub has 9 inches of water after 11 minutes.

• The tub has 11 inches of water after 9 minutes.