Scale Copes
The number you multiply by
What is the scale factor?
The table shows a proportional relationship. What is the constant of proportionality?
Number of Apples Cost
2 $4
4 $8
6 $12
What is $2 per apple?
The equation y=6x represents a proportional relationship.
What is the constant of proportionality?
What is 6?
A car travels 240 miles in 4 hours at a constant rate.
What is the unit rate?
What is 60 mph?
A table has the following values:
𝑥 𝑦
1 9
2 18
3 27
What is m in y=mx?
What is 9?
The scale factor of a shape is 1. What happens to the size of the shape?
What is stays the same?
What is the unit rate?
Hours Miles Traveled
1 45
2 90
4 180
What is 45 mph?
The equation y=2.5x represents the cost of buying notebooks.
What is the unit rate?
What is $2.50 per notebook?
A store sells 5 pencils for $3.
What is the cost per pencil?
What is $0.60 per pencil?
A table shows that when x=4, y=18. The relationship is proportional.
What is the equation?
What is y=4.5x?
A scale drawing of a building uses the scale 1 cm = 4 meters. A wall is 6 cm long in the drawing. How long is the actual wall?
What is 24 meters?
What is the constant of proportionality?
Number of Notebooks Total Cost
3 $7.50
5 $12.50
8 $20
What is $2.50 per notebook?
The equation y=3/4x represents a proportional relationship.
What is the constant of proportionality?
What is 3/4?
A machine produces 84 bottles in 7 minutes.
What is the unit rate?
What is 12 bottles per minute?
A proportional relationship has the equation y=3.2x.
What is y when x=5?
What is 16?
A road is actually 30 miles long. A map uses the scale 1 inch = 5 miles. How long should the road be represented on the map?
What is 6 inches?
What is the unit rate?
Pounds of Apples Cost
2.5 $5
4 $8
7.5 $15
What is $2 per pound?
A proportional relationship is represented by:
y=1.25x
If x represents the number of pounds and y represents the cost, what is the unit rate?
What is $1.25 per pound?
A runner completes 3 miles in 24 minutes at a constant pace.
What is the unit rate in minutes per mile?
A proportional relationship has the equation y=0.75x.
If y=18, what is x?
What is 24?
The size of a scale factor when the shape gets smaller.
What is smaller than 1?
What is the constant of proportionality?
Number of Tickets Total Cost
4 $18
7 $31.50
10 $45
What is $4.50 per ticket?
A proportional relationship has a constant of proportionality of 8. Which equation represents the relationship?
What is y=8x?
A babysitter earns $52.50 for 3.5 hours of work.
What is the unit rate?
What is $15 per hour?
A proportional relationship is described below:
A gym charges $27 for 3 months of membership. The cost is the same each month.
Let x represent the number of months and y represent the total cost.
Write the equation y=mx, then find the total cost for 8 months.
What is y=9x and $72?