Identifying Constant Of Proportionality (Tables)
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1
2Name:
Identifying Constant of Proportionality (Tables)
Determine the constant of proportionality for each table. Express your answer as y = kx
A n s w e r s
Ex)
Enemies Destroyed (x)
2
9
5
6
10
y = 25x
Ex.
Points Earned (y)
50
225
125
150
250
Every enemy destroyed earns
25
points.
y = 9x
1.
1)
Concrete Blocks (x)
9
4
8
10
5
y = 3x
2.
weight in kilograms (y)
81
36
72
90
45
Every concrete block weighs
9
kilograms.
y = 36x
3.
2)
y = 2x
Glasses of Lemonade (x)
2
8
7
9
4
4.
Lemons Used (y)
6
24
21
27
12
y = 26x
For every glass of lemonade there were
3
lemons used.
5.
y = 10x
3)
6.
Lawns Mowed (x)
5
8
6
9
7
Dollars Earned (y)
180
288
216
324
252
y = 10x
7.
For every lawn mowed
36
dollars were earned.
y = 38x
8.
4)
Pieces of Chicken (x)
5
10
6
3
7
Price in dollars (y)
10
20
12
6
14
For each piece of chicken it costs
2
dollars.
5)
Time in minute (x)
8
10
9
2
6
Gallons of Water Used (y)
208
260
234
52
156
Every minute
26
gallons of water are used.
6)
Pounds of Beef Jerky (x)
9
2
5
3
7
Price in dollars (y)
90
20
50
30
70
For every pound of beef jerky it cost
10
dollars.
7)
Tickets Sold (x)
2
3
9
5
6
Money Earned (y)
20
30
90
50
60
Every ticket sold
10
dollars are earned.
8)
Phone Sold (x)
4
5
9
2
6
Money Earned (y)
152
190
342
76
228
Every phone sold earns
38
dollars.
1-8
88 75 63 50 38 25 13 0
Math
7
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