Functions and scatterplots

Which graph does not represent a function?

Answer explanation

Answer is c.

when you draw a vertical line it will go through 2 points.

Is this mapping a function or not a function? 

• Function

• Not a Function

Answer explanation

# 6 has 2 outputs 5 and 10. so the 6 is a repeating x value.

Tags

CCSS.8.F.A.1

• Function

• Not a Function

Answer explanation

The graph fails the vertical line test.

• Function

• Not a Function

Answer explanation

This is a function because the x values do not repeat.

Tags

CCSS.8.F.A.1

• Q

• R

• S

• T

Answer explanation

Table T has no repeating x values.

Tags

CCSS.8.F.A.1

• (-2, -2)

• (2, 4 )

• (-3, 1)

• ( 3,-2)

Answer explanation

(-3,1) is the only point of the choices that will not be in the same vertical line as another point.

• A

• B

• C

• D

Answer explanation

C. the x has an exponent.

B, is linear because you can turn 4 squared into 16.

Tags

CCSS.8.F.A.3

Answer explanation

c. is the only table that has a constant rate of change.

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

• A

• B

• C

• D

Answer explanation

when reading a graph, a constant isa horizontal line.

Tags

CCSS.HSF-IF.C.7B

• A

• B

• C

• D

Tags

CCSS.HSA.REI.C.7