A radio station plays 30
songs in 4 hours. What is the
constant of proportionality
based on this situation?
station
3
washing
machines
52.5
67. 5
articles of
clothing
3
5
6
station
Graph
Table
y= articles of clothing
y=15x
Equation
x= cupcakes sold
y= cost ($)
y=3.5x
4
cupcakes
sold
3
4
7
8
cost ($)
14
24.5
28
Graph
10.5
y= distance (mi)
4
290
217.5
72.5
3
145
distance
(mi)
2
2
y=72.5x
x= time (h)
x= washing machines
Graph
Verbal
Eden sold cupcakes at a
bake sale. She sold a dozen
cupcakes for $42. What is
the constant of
proportionality based on
this situation?
Equation
Table
Equation
Table
9
.
1
y=7.5x
7
Rose traveled 217 5 miles
in 3 hours. What is the
constant of proportionality
based on this situation?
time (h)
y= number of songs played
4
Verbal
Verbal
A cleaning company can
wash 90 articles of clothing
using 6 washing machines.
What is the constant of
proportionality based on
this situation?
x= time (h)
30
15
songs
played
2
2
Graph
Table
time (h)
station
90
Equation
75
Verbal
45
1
30
station
Tanner cycled 8 miles in 20
minutes. What is the constant
of proportionality based on
this situation?
station
7
months
houses
built
Verbal
Equation
y=57x
8
x= months
y= number of houses built
y=2.5x
Graph
4
5
7
8
Verbal
Equation
Leigh earned $312 on 6
personal training sessions.
What is the constant of
proportionality based on
this situation?
x= number of sessions
y= cost ($)
y=52x
Graph
9
sessions
3
5
8
9
cost ($)
156
260
416
468
Table
456
7
399
285
114
distance
(mi)
5
y= distance (mi)
station
Graph
Table
2
x= time (h)
Equation
Table
10
A trucker drove 171 miles in
3 hours. What is the
constant of proportionality
based on this situation?
time (h)
y=0.4x
Verbal
A building company can build
30 houses in one year. How
many houses can the company
build each month? Find the
constant of proportionality
based on this situation.
4
8
3.2
5
2
0.8
distance
(mi)
2
y= distance (mi)
6
Graph
Table
time (min)
x= time (min)
station
20
Equation
17. 5
Verbal
12. 5
5
10
station
Equation
2.25
cost ($)
Equation
y= number of trees planted
y=8x
12
5
8
9
Verbal
y= cost ($)
y=1.35x
Equation
x= time (h)
y= buckets of strawberries
y=9x
Graph
Table
time (h)
3
4
7
9
buckets
81
8
64
6
2
In 12 hours, Anne picked
108 buckets of
strawberries. What is the
constant of proportionality
based on this situation?
Graph
48
40
24
trees
planted
5
x= time (h)
station
x= bottle of Dr. Pepper
Graph
12.15
bottles of
Dr. P
Table
3
Table
9
A tree orchard plants 160
trees per week. They work 5
days a week and spend 4
hours each day planting. Find
the constant of proportionality
to show how many trees they
plant per hour.
time (h)
Graph
63
11
y=0.25x
y= distance (mi)
8
Verbal
Equation
36
station
6
1. 5
distance
(mi)
3
.75
time (min)
Verbal
Sam bought six bottles of
Dr. Pepper for $8.10. What
is the constant of
proportionality based on
this situation?
x= time (min)
2
Table
10
10.8
It takes Travis 2 minutes to
run half of a mile. What is the
constant of proportionality
based on this situation?
station
6.75
Verbal
2.7
9
27
station