Proportional Relationship and Additive Relationship

Does this table show a proportional relationship?

• Yes, it's proportional

• No, it's not proportional

• Sometimes it's proportional

Proportional relationships are...

• Additive--x plus something gives you y

• Multiplicative--x times something gives you y

Ms. Milo is rock climbing. She climbs 9 feet up or 3 yards. When she has climbed 45 feet up, she will have climbed 15 yards.

• That's a proportional relationship.

• That's not a proportional relationship.

What's the missing number in the ratio table?

• 2

• 8

• 12

• 7

How much would 10 dozen eggs cost?

• 15

• 9

• 3

• 18

How many leagues are in 18 miles?

• 3

• 6

• 8

• 10

• 9

What kind of relationship does this table show?

• Additive, it's proportional

• Additive, it's not proportional

• Multiplicative, it's proportional

• Divisitive, it's proportional

Mr. Carter is baking bread. The recipe calls for 2 cups of flour for every cup of water. If he doubles the recipe, will the new amount of flour and water be proportional to the original recipe?

• Yes, it's proportional

• No, it's not proportional

How many hours do you have to work to make $0?

• 1

• 5

• 9

• 0

Which equation applies to proportional relationships?

• y = mx

• y = x + b