Proportions, y=kx, Proportional Relationships

Front

What makes a graph proportional?

Back

A graph is proportional if it is linear and the line goes through the origin.

Tags

CCSS.7.RP.A.2D

Front

How do you find the unit price of an item?

Back

To find the unit price, divide the total price by the number of items.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is the unit price of Sargento cheese slices ($2.48 for 10 slices)?

Back

$0.248 per slice.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is the unit price of Velveeta cheese slices ($3.18 for 12 slices)?

Back

$0.265 per slice.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

Which cheese slices offer a better deal, Sargento or Velveeta?

Back

Sargento offers the better deal.

Tags

CCSS.6.RP.A.3B

Front

If Johnathan saves $25 per month, how much will he save in 6 months?

Back

$150.

Tags

CCSS.3.OA.A.3

Front

If Miguel saves $20 per month, who saves more after 6 months?

Back

Johnathan saves more.

Tags

CCSS.7.RP.A.3

Front

What is the formula for a proportional relationship?

Back

y = kx, where k is the constant of proportionality.

Tags

CCSS.7.RP.A.2C

Front

What does the constant of proportionality (k) represent?

Back

It represents the ratio of y to x in a proportional relationship.

Tags

CCSS.7.RP.A.2B

Front

Is the graph of y = 3x proportional or non-proportional?

Back

Proportional.

Tags

CCSS.7.RP.A.2D