Ratios and Proportions

Determine the missing value in the table.

• 15

• 3

• 1/3

• 9

What is the unit rate?

• 8

• 16

• 24

• 2

Find the unit rate:  $3.60 for 3 pounds of apples. How much does it cost for 1 pound of apples?

• $1.00 per pound

• $3.60 per pound

• $1.20 per pound

• $1.10 per pound

Sargento cheese slices $2.48 for 10 slices
or
Velveeta Cheese slices $3.18 for 12 slices
Find the unit price for each and choose the better deal.

• Sargento

• Velveeta

It snowed 14 inches in 5 hours. What is the unit rate?

• 3 inches

• 1.5 inches

• 5 inches

• 2.8 inches

Which statement below accurately represents the graph?

• $100 is earned for each hour worked

• $200 earned for every 2 hours worked
  is the unit rate

• $500 is earned for every 8 hours worked

• $300 is earned after working 4 hours

The constant of proportionality in the equation y = ½x is _______. 

• x

• y

• 1/2

• 2

What makes a graph proportional?

• Straight line

• The line goes through the origin

• Curvy line

• Straight line and the line goes through the origin

A proportional relationship can be written as an equation in the form ____ = _____  _____

• y = k+x

• y = k-x

• y = kx

• y = k/x

Write an equation for this relationship.

• y=18x

• y=18.50x

• y=22.50x

• y=22x