Determine Functions

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.

Tags

CCSS.8.F.A.1

Is this graph a function or not a function? 

• Function

• Not a Function

Which of the following is a function?

• A

• B

• C

• D

Tags

CCSS.8.F.A.1

Which is a function?

• W

• X

• Y

• Z

Tags

CCSS.8.F.A.1

Is this a function? Explain.

• Yes; it passes the horizontal line test.

• No; it is not a straight line.

• Yes; it passes the vertical line test.

• No; there is a line connecting the dots.

Solve for f(x) = 10

9x + 1 = f(x)

• 1

• 10

• 12

• 11

Tags

CCSS.HSF.IF.A.2

Evaluate f(-5) if f(x) = -2x - 12

• -22

• -2

• -19

• -5

Tags

CCSS.HSF.IF.A.2

For the function f(x) = -3(x-1) find f(0).

• 0

• -3

• 3

• -1

Tags

CCSS.HSF.IF.A.2

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.

Tags

CCSS.8.F.A.1

Solve for f(5):
f(5) = -x + 4

• 9 

• 1

• -1

• -9

Tags

CCSS.HSF.IF.A.2