Functions

Does the graph represent a function or not?

• Function because it passes the vertical line test.

• Function because it's a curvy line.

• Not a function because it does not pass the vertical line test.

• Not a function because it is not a straight line.

Does the set of ordered pair represent a function or not?

• Function; each x is matched with only one y.

• Function; it has a constant rate of change.

• Not a function; one of the x-values is matched with more than one y-value.

• Not a function; it does not have a constant rate of change.

Tags

CCSS.8.F.A.1

Does this function mapping represent a function or not?

• Function; each x-value is matched with one y-value.

• Function; none of the y-values repeat

• Not a function; one of the x-values is matched with more than one y-value

• Not a function; one of the y-values is repeated

Tags

CCSS.8.F.A.1

Does the table represent a function or not?

• Function; each x-value is matched with one y-value

• Function; there is a constant rate of change

• Not a function; one of the x-values is matched with more than one y-value

• Not a function; it does not have a constant rate of change

Tags

CCSS.8.F.A.1

Which ordered pair could be added to the graph and it would still remain a function?

• (3, 5)

• (5, 3)

• (7,6)

• (1, 7)

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Which function has a greater rate of change?

• Function A

• Function B

• They are the same.

Tags

CCSS.8.F.A.2

CCSS.HSF.IF.C.9

• iTunez; they charge $8.99 per month and Beatz charges $25 per month

• Beatz on Demand; they charge $5.99 per month and iTunez charges $8.99 per month

• iTunez; they don't have any one time fees

• Beatz on Demand; they are just better

Tags

CCSS.8.F.A.2

CCSS.HSF.IF.C.9

Which of the following is a nonlinear function?

• $y=\frac{1}{4}x$

• $y\ =\ \frac{2}{x}+3$

• $y\ =\ -5x$

• $2x+4y=8$

Tags

CCSS.8.F.A.3

Which represents a linear function?

• $y\ =4x^2+1$

• $y\ =\ \frac{7}{x}$

• $y\ =\ \frac{1}{8}x-4$

• $y=x^3$

Tags

CCSS.8.F.A.3

Which best describes the graph?

• linear; function

• linear; not a function

• nonlinear; function

• nonlinear; not a function