8th unit 5 review

Which graph is non-proportional?

• A
• B
• C
• D

Tags

CCSS.7.RP.A.2D

 Is this table proportional or non-proportional?

• Proportional because the y to x ratio is a constant of proportionality. 
• Non-Proportional because the y to x ratio is not a constant of proportionality. 
• Proportional because the x to y ratio is a constant of proportionality. 
• Non-Proportional because the x to y ratio is not a constant of proportionality. 

Tags

CCSS.8.EE.B.5

CCSS.8.F.A.2

CCSS.8.F.B.4

What are the main characteristics of a proportional relationship between two variables?

• They pass through the origin.
• They are linear (straight line) and also pass through the origin.
• They are curved
• The x to y ratio is a constant of proportionality.

Tags

CCSS.8.EE.B.5

CCSS.8.EE.B.6

CCSS.8.F.A.3

CCSS.8.F.B.4

CCSS.8.SP.A.2

Is the following equation a proportional relationship?
y = -1/4x

• Yes
• No

Tags

CCSS.8.EE.B.5

CCSS.8.EE.B.6

Is the following equation a proportional relationship?
y = -3x+4

• Yes
• No

Tags

CCSS.8.EE.B.5

CCSS.8.EE.B.6

CCSS.8.F.A.3

CCSS.8.F.B.4

What is the constant of proportionality?

• 8
• 16
• 24
• 2

Tags

CCSS.7.RP.A.2B

Craig earns extra money as a lifeguard. He earns $37 for 4 hours and $64.75 for 7 hours.  What is the constant of proportionality? 

• $37
• $64.75
• $9.25
• $18.50

Tags

CCSS.7.RP.A.2B

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

• Function
• Not a Function

Tags

CCSS.8.F.A.1

CCSS.8.F.A.2

CCSS.8.F.B.5

Is this mapping a function or not a function? 

• Function
• Not a Function

Tags

CCSS.8.F.A.1