Proportional vs Nonproportional Ratios

Which one of these is the constant of proportionality?

• 2

• 30

• 1/15

• 15

Tags

CCSS.7.RP.A.2B

Write an equation for this situation:

The cost of renting a kayak is just $20 an hour.

• y = 10x

• k = 20

• y = 20x

Tags

CCSS.5.OA.B.3

This equation shows a proportional relationship

y = 5x

• True

• False

Tags

CCSS.7.RP.A.2C

• mostly equal

• all equal

Tags

CCSS.7.RP.A.2A

What is the constant of proportionality of this graph?

• 10

• 15

• 20

• 30

Tags

CCSS.7.RP.A.2B

Does this equation show a proportional relationship?

y = 3x - 2

• yes

• no

Tags

CCSS.7.RP.A.2C

Proportional or Nonproportional

• Proportional (straight line through origin)

• Non-Proportional

Tags

CCSS.7.RP.A.2D

When graphing a relationship on the coordinate grid ... The line is straight and it passes through the origin, therefore we have a ______________.

• Proportion

• Party

• Porcupine

• Positive number

Tags

CCSS.7.RP.A.2D

How can you use the unit rate to create an equation for a relationship? (Remember the unit rate is the same as the constant of proportionality)

• y=abc+def+ghi

• y=5$3

• y=constant of proportionality(x)

• y=305x + 88 -4 abc

Tags

CCSS.7.RP.A.2C

When graphing a relationship that is in a table, the relationship is proportional if, and only if, (select TWO)

• The line is curvy and pretty.

• The line is straight.

• The line passes through the origin.

• The line does not pass through the origin.

Tags

CCSS.7.RP.A.2D