Unit 3 and 4 Semester Review

3.79 Liters in 1 Gallon

• 4.75 Gallons

• 3.25 Gallons

• 5.25 Gallons

• 4.25 Gallons

Answer explanation

3.79 Liters in 1 Gallon

18 / 3.79 = 4.75

1 inch = 2.54 cm

• A) 5.3 cm

• B) 25.6 cm

• C) 65 cm

• D) 162.56 cm

Answer explanation

64 x 2.54 = 162.56 cm

Cross Multiply and Divide

• $15

• $20

• $25

• $30

Answer explanation

44.50 / 1.78 = 25

If so, what is the constant?

• yes, 3

• yes, 1/3

• no

• yes, 4

Answer explanation

y/x = constant

9/3 = 3

• Yes it is proportional

• No it is not proportional

Answer explanation

110/2 does not equal 155/3

Slope and Constant of proportionality are the same thing.

• 3/2

• -3/2

• 3

• 2

Answer explanation

slope = Rise over run

Up 3, over 2

slope is 3/2

• A

• B

• C

• D

Answer explanation

1 divided by 1/8 = 8

What is the constant of proportionality?

• 9/2

• -9/2

• 9

• 2/9

Answer explanation

Rise over Run

Rise of 9 Run of 2

9/2 = Constant

y/x = constant

• 2/5

• 5/2

• -5/2

• -2/5

Answer explanation

y/x

5/2

y=px

• A

• B

• C

• D

Answer explanation

Rise over Run = constant

Rise 3 Run 4

3/4 = constant