Proportional Relationships from a Table

Determine if the table above is proportional and how do you know?

• The table is proportional because the unit rate is a constant 0.33.

• The table is proportional because it passes through the origin.

• The table is proportional because the unit rate is a constant 0.28

• The table is not proportional because the unit rate is not constant.

Tags

CCSS.7.RP.A.2A

Determine which equation does NOT represent a proportional relationship.

• y = -2x

• y = 1/2 x

• y = 3x

• y = 5x - 7

Tags

CCSS.7.RP.A.2C

Sherry can buy 4 pounds of oranges for $18.  Write the equation to represent the cost, y, for x oranges.

• y = 4.5x

• y = 72x

• y = 2/9 x

• y = 4x

Tags

CCSS.7.RP.A.2C

Does the table represent a proportional relationship?

• Yes.

• No.

Tags

CCSS.7.RP.A.2A

Identify the constant of proportionality. Write an equation to relate weight, w, to the price, p.

• k = .45; p = .45w

• k = .22; p = .22w

• k = 45; p = 45w

• k = 22; p = 22w

Tags

CCSS.7.RP.A.2B

Does the table represent a proportional relationship?

• Yes.

• No.

Tags

CCSS.7.RP.A.2A

Is this graph proportional?

• Yes

• No

Tags

CCSS.7.RP.A.2D

What does the ordered pair (20, 3000) represent?

• The machine folds 3,000 sheets in 20 minutes.

• The machine folds 20 sheets in 3,000 minutes.

• There are 3,000 sheets in 20 minutes.

• There are 20 sheets in 3,000 minutes.

Is this table proportional?

• Yes

• No

Tags

CCSS.7.RP.A.2A

Is the given table a proportional relationship? If so, write an equation that relates y to x.

• Yes;  y=1/3x

• Yes;  y=3x

• Yes;  y=5x 

• No

Tags

CCSS.7.RP.A.2B