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100
Drew paints portraits. Find the constant of proportionality if it is a proportional relationship
Time (in hours) = x Number of portraits = y
1 5
2 10
3 15
4 20
5 portraits per hour
100
Find the constant of proportionality with correct units
k =46 miles per hour
100
Morgan bought 24 batteries packed in 6 equal packs. What is the constant of proportionality in batteries per pack?
4 batteries per pack
100
Find the constant of proportionality: y = 7x
k = 7
100
An equilateral triangle is 3 cm on each side. It is scaled up to a new triangle that is 9 cm on each side. What is the scale factor?
3
200
The table shows the amount earned by Harry for selling ice cream. Find k.
Cups Sold = x 3 5 7 9
Earnings ($) = y 12 20 28 36
k = 4
200
What is K with proper units?
k = 1.2 miles per hour
200
Julie brought 5 pounds of cans to a recycling place and was paid $2. Find the constant of proportionality (cost per pound)
$0.40/pound
200
Find the constant of proportionality:
y = -5 x
k = -5
200
(3 + 4) x (10 - 5)
35
300
Fred wrote notes during an exam. Find the CoP (with correct units) if it is a proportional relationship.
Notes (pages) 8 9 10 11
Time (in hours) 18 19 20 21
It is not proportional, there is no k.
300
Find the constant of proportionality with correct units
5 gallons per min
300
To make juice, Michael combines 1/4 liters of water and 2/3 scoops of juice mix. What is the constant of proportionality in scoops per liter
8/3
2 and 2/3
or 2.666 scoops per liter
300
Daisy made bread. The equation B = 4f shows the number of breads basked based on the amount of flour used. Where B is the number of bread loaves made and f is the cups of flour used. Find the constant of proportionality.
k = 4 loaves per cup
300
What is the name of the point (0, 0) on a graph?
the origin
400
A ferry transports bikes to an island. Write k (which is the CoP).
Number of bikes (x) 10 12 14
Number of trips (y) 5 6 7
k = 0.5
400
Find k with proper units.
k = 3 gallons per minute
400
Jose's time machine needs 140 megawatts of electricity to travel back 7 years. What is the unit rate (megawatts per year)?
20 megawatts per year
400
The number of milk bottles sold can be determined by the equation P = 0.35n, where P is the number of bottles of milk and n is the number of boxes opened. Find the constant of proportionality with correct units.
k = 0.35 bottles per box
400
What two things must a graph have if it shows a proportional relationship?
Starts at the origin (0, 0) & Straight line
500
Alice bought comics. Find the k if the table shows a proportional relationship.
Number of comics 2 4 6
Price (dollars) 6 12 18
k = 3 dollars per comic
500
Find the constant of proportionality with correct units
60 miles per hour
500
A dog can walk 2 miles in 37 minutes. What is the constant of proportionality in miles per minute? Round to 3 decimal places
0.054 miles per minute
500
In a laboratory, scientists performed chemical reactions. The amount of product formed by a reaction can be determined by P = 0.25r, where P is the product and r is the amount of reactants used. Find k with correct units.
k = 0.25 product per reactant
500
a rectangle has lengths 12 cm and 10 cm and is scaled by a factor of 1/2. What are the new lengths
6cm and 5cm