Equations and Functions

is this a function?

• No

• Yes

• x = 4

• x = 5

• x = 7

• x = 10

Is this table a function or not a function? 

• Function

• Not a Function

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

• 9 

• 1

• -1

• -9

-3 ( f - 8 ) = 39

Solve for f

• -21

• -10.3

• -5

• 5

Is this a function and why?

• Yes, it is a function because it doesn't have an exponent

• No, it is not a function because it has an exponent

Part of the quadratic formula is shown. What does the question mark represent?

To complete the square in the left side of the given quadratic equation, what number will you add to both sides? (Type the number only).

When you use the quadratic formula to solve a quadratic equation, which is true?

• It always yields rational solutions.

• It always yields irrational solutions.

• It always yields 2 real solutions.

• It always yields 0, 1, or 2 real solutions.