Use the image to answer the question

Question

y
30
28
26
24
22
20
18
16
14
12
10-
8
,,
6
4
2
0+
0
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
Using the points shown in the graph, identify the constant of proportionality for this griph
(1 point)

Answer 1

To identify the constant of proportionality for this graph, we need to find the ratio of the change in the y-coordinate to the corresponding change in the x-coordinate for any two points on the graph. From the given graph, it is clear that the y-coordinate decreases by 2 units for every 1 unit increase in the x-coordinate.

Therefore, the constant of proportionality for this graph is 2.