Identifying Proportional Relationships

What equation is ALWAYS used to determine proportional relationships?

• x=ky

• y=kx

• y=k

• y=x

Tags

CCSS.7.RP.A.2C

What ratio is ALWAYS used when determining proportional relationships?

• x/y

• y/x

Tags

CCSS.7.RP.A.2A

What does "k" represent?

• Origin

• Constant of Proportionality

• Proportional Relationship

• The units

Tags

CCSS.7.RP.A.2B

Does the following table represent a proportional relationship? If so identify the constant of proportional and create an equation to represent it.

• Proportional; k = 1/40 pages per day; y=1/40x

• Proportional; k = 40 pages per day; y=40x

• Not Proportional

• Proportional; k = 40 days per pages; y=40x

Tags

CCSS.7.RP.A.2B

Create an equation to represent the proportional relationship in the table given.

• y = 1/3x
• y = 3x
• y = 1/2x
• x = 3y

Tags

CCSS.7.RP.A.2C

Does the following graph represent a proportional relationship?

• No, because it does not start at the origin.

• No, because it is not a straight line.

• Yes, because it starts at the origin.

• Yes, because it is a straight line.

Tags

CCSS.7.RP.A.2D

Does the equation g=1/4w represent a proportional relationship? If so, identify the constant of proportionality.

• Proportional; k=1/4

• Proportional; k=4

• Not Proportional

Tags

CCSS.7.RP.A.2B

Does the following table represent a proportional relationship? If so, identify the constant of proportionality and create an equation to represent it.

• Proportional; k=8; y=8x

• Not Proportional

• Proportional; k = -8; y=-8x

• Proportional; k=1/8; y=1/8x

Tags

CCSS.7.RP.A.2B

Which equation BEST represents the proportional relationship shown in the table?

• m=45h

• y=45x

• m=1/45h

• y=1/45x

Tags

CCSS.7.RP.A.2C

What is the constant of proportionality for the following graph?

• There is no constant of proportionality because the graph is not proportional.

• k = 9 inches per hour

• k = 1/9 inches per hour

• k = 1 inch per hour

Tags

CCSS.7.RP.A.2B