(Algebra !) Function Quiz

Is this table a function or not a function?

• It is a function

• It is not a function

• maybe it is a function or not

• I don't know

Answer explanation

It has more than one output for the number 2.

Tags

CCSS.8.F.A.1

Is this table a function or not a function?

• It is a function

• It is not a function

• maybe it is a function or not

• I don't know

Answer explanation

It's a function because each of the inputs has only one output.

Tags

CCSS.8.F.A.1

Is this graph a function or not a function?

• It is a function

• It is not a function

• maybe it is a function or not

• I don't know

Answer explanation

It's a function because it passes the vertical line test.

Is this graph a function or not?

• It is a function

• It is not a function

• maybe it is a function or not

• I don't know

Answer explanation

It's a function because it passes the vertical line test.

Tags

CCSS.8.F.A.1

Is this graph a function or not?

• It is a function

• It is not a function

• maybe it is a function or not

• I don't know

Answer explanation

It is not a function because it doesn't pass the vertical line test.

Tags

CCSS.8.F.A.1

F(x)=x² + 10(x), if the value is F(3)

• 38

• 20

• 32

• 39

Answer explanation

3² would equal 9 and 10(3) is 30 ,so 30 + 9 = 39.

Tags

CCSS.HSF.IF.A.2

F(x)= 5x + x + 4 if the value is F(4)

• 12

• 3

• 28

• 30

Answer explanation

5(4) would equal 20 and 4 plus 4 is 8, so 20 + 8 = 28.

Tags

CCSS.HSF.IF.A.2

F(x)= 3x - 5

• F(3)=4

• F(0)=1

• F(2)=3

• F(5)=9

Answer explanation

3(3) equals 9 and then 9-5 = 4

Tags

CCSS.HSF.IF.A.2

F(x)= 2x-1

• F(3)=4

• F(0)=1

• F(2)=3

• F(5)=0

Answer explanation

2(2) would equal 4 and 4 minus 1 is 3.

Tags

CCSS.HSF.IF.A.2

F(x)= 5x+ 10

• F(3)=19

• F(0)=13

• F(2)=20

• F(5)=28

Answer explanation

5(2) would equal 10 and 10 plus 10 is equaled to 20

Tags

CCSS.HSF.IF.A.2