Identifying Constant of Proportionality (Graphs) - Identify the constant of proportionality - y = kx

Sep 30, 2026

Uploaded by Blitz

Worksheets on identifying the constant of proportionality from graph relationships written in the form y = kx. Students match given data sets and plotted points to the correct proportional equation by determining the constant k. An answer key is included showing which equations correspond to each numbered graph or table, with several different k-values used across problems.

LanguageEnglish

CategoryExam

FormatPDF

Pages3

Reading Time8 min

AccessFree to download

Identify the constant of proportionality

Write the answer as y = kx

Match graphs to proportional equations

Identifying Constant of Proportionality (Graphs) Name: | Identify the constant of proportionality. Write your answer as y = kx | | | | | | | | 1.
2.
3.
4.
5.
6.
7.
8. | Answers | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1)
3)
5)
7) | 180
150
120
90
60
30
0 | | | 2)
4)
6)
8) | 216
180
144
108
72
36
0 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 10
8
6
4
2
0 | | | | 96
72
48
24
0 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 360
288
216
144
72
0
105
84
63
42
21
0 | |
0 8 16 24 32 40

0 7 14 21 28 35 | | 120
90
60
30
0
144
120
96
72
48
24
0 | |
0 5 10 15 20

0 4 8 12 16 20 24 | | | [Math](Math www.CommonCoreSheets.com 3 1-8)[ www.CommonCoreSheets.com](Math www.CommonCoreSheets.com 3 1-8)[ 3](Math www.CommonCoreSheets.com 3 1-8)[ 1-8](Math www.CommonCoreSheets.com 3 1-8) 88 75 63 50 38 25 13 0 | | | | | | | | | | --- | --- | --- | --- | --- | --- | --- | --- | Identifying Constant of Proportionality (Graphs) Name: Answer Key | Identify the constant of proportionality. Write your answer as y = kx | | | | | | | | 1.
2.
3.
4. | Answers
y = 3x | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1) 180
150
120
90
60
30
0 | | | | 2) 216
180
144
108
72
36
0 | | | | | | | | | | | | | | | | y = 4x | | | | | | | | | | | y = 2x | | | | | | | | | | | y = 4x | | | 0 10 20 30 40 50 60 | | | | 0 9 18 27 36 45 54 | | | | | | 3) | 10
8
6
4
2
0 | | | 4) | 96
72
48
24
0 | | | 5.
6.
7.
8. | y = 9x | | | | | | | | | | | y = 6x | | | | | | | | | | | y = 3x | | | | | | | | | | | y = 6x | | | | | | | | | | | | | 5) | 0 1 2 3 4 5 | | | | 0 6 12 18 24 | | | | | | | 360
288
216
144
72
0 | | | 6) | 120
90
60
30
0 | | | | | | 7) | 0 8 16 24 32 40 | | | | 144
120
96
72
48
24
0 | | | | | | | 105
84
63
42
21
0 | | | 8) | | | | | | | | 0 7 14 21 28 35 | | | | 0 4 8 12 16 20 24 | | | | | [Math](Math www.CommonCoreSheets.com 3 1-8)[ www.CommonCoreSheets.com](Math www.CommonCoreSheets.com 3 1-8)[ 3](Math www.CommonCoreSheets.com 3 1-8)[ 1-8](Math www.CommonCoreSheets.com 3 1-8) 88 75 63 50 38 25 13 0 | | | | | | | | | | --- | --- | --- | --- | --- | --- | --- | --- | Identifying Constant of Proportionality (Graphs) Name: | Identify the constant of proportionality. Write your answer as y = kx y = 2xy = 9x
y = 3xy = 4x
y = 6x y = 4x
1) 180
150
120
90
60
30
0

3) 0 10 20 30 40 50 60 0 9 18 27 36 45 54
10
8
6
4
2
0

5) 0 1 2 3 4 5 0 6 12 18 24
360
288
216
144
72
0

6) 120
90
60
30
0
| 1.
2.
3.
4.
5.
6. | Answers | | --- | --- | --- | | | | | | | | | | | | | | | | | | | | | | | | | Math Modified [www.CommonCoreSheets.com](www.CommonCoreSheets.com) 3 1-6 83 67 50 33 17 0

FAQs

What is the goal of the worksheet?

Identify the constant of proportionality for each item and write the equation in the form y = kx.

How should answers be written?

Answers must be written as y = kx, where k is the constant of proportionality.

What does the answer key provide?

The answer key lists which y = kx equations match each numbered graph/table scenario.

Sep 30, 2026

Uploaded by Blitz