Ratio as Multiplicative Comparison

Each x-value is multiplied by the same factor  to find the corresponding y-value

• No relationship

• Additive Relationship

• Bad relationship

• Multiplicative Relationship

What is the correct equation for a multiplicative relationship?

• y = x + a

• x = y + a 

• y = ax

• a/x = m

What is a rate?

•  Ratio comparing quantities with different units of measure 

• Good

• scale of 1-10

• Bad

Comparison of two measures with one term having a value of 1; also called price per unit or cost

• Regular old ratio

• math

• Subtraction

• Unit Rate

Sylvia lives 48 miles away from Brinson Elementary School. Jessica lives 6 miles away from the same school. How many times as far from the school does Sylvia live compared to Jessica?

• 5

• 8

• 288

• 68

Which statement is true about the table ?

• The ratio of flutes to saxophones is 13 to 27 

• The ratio of trumpets to all instruments is 9:59

• The number of trumpets to flutes is 27:9

• The number of Drums to total instruments is 10/49

When can two quantities be compared using ratio?

• If they are in different units

• If they are in the same unit

• If they are in different shapes

• If they are in different colors

True or False

: A ratio is a mathematical way to compare multiple things

• True

• False

The graph for this type of relationship always intersects the origin.

• Positive Relationship

• Multiplicative Relationship

• Additive Relationship

• Negative Relationship

The ratio of sweaters to vests is 6:5. If there are 30 vests, how many sweaters are there? Use the tape diagram to find your answer.