PA Mod 3 Review 1

Write an equation for this relationship.
Remember: You can find k using the ratio

 $k\ =\frac{y}{x}$   and equations can be written as y=kx.

• y=1/5x

• y=1/2x

• y=2x

• y=5x

What is the unit rate in this proportional relationship? Remember: Unite Rate means slope! slope is the

 $\frac{rise}{run}\ or\ \frac{change\ in\ y}{change\ in\ x}$  

• 60 miles/1 hour

• 120 miles/ 2 hours

• 1 mile/ 1 hour

Which statement best describes the relationship between paws and dogs? (set up proportions and compare the ratios: are they equal?)

• Proportional

• Not Proportional

Which graph is non-proportional? (does the line go through the origin?)

• A

• B

• C

• D

The cost of 4 pounds of grapes is $24.36. What is the unit rate, in dollars per pound?

• $6.09/ 1 pound

• $20.36/ 1 pound

• $8.12/ 1 pound

• $28.36/ 1 pound

Does this graph represent a proportional relationship?

• No, because it doesn't pass through the origin.

• Yes, because it doesn't pass through the origin.

• Yes, because it intersects the y axis.

• No, because it intersects the x axis.

What is a Ratio? Example:

 $\frac{3}{2}$  

• A comparison of two quantities 

• To multiply two fractions 

• Two decimals that can be multiplied

Find the Unit Rate.
72 ounces for 12 servings    

• 7 ounces per serving
• 144 ounces for 24 servings
• 6 ounces per serving
• 36 ounces for 6 servings

Tags

CCSS.HSF-LE.A.1B

Does the graph show a proportional relationship?

• Yes
• No

Tags

CCSS.7.RP.A.2D

Which graphs are proportional? Select all.

• A

• B

• C

• D

Tags

CCSS.7.RP.A.2D