The graph shows the amount of money paid when purchasing bags of caramel corn at the zoo:

a graph is shown. the x-axis is labeled from 0 to 9. the y-axis is labeled from 0 to 10. the four points shown on the graph are ordered pairs 0, 0 and 1, 3 and 2, 6 and 3, 9. these points are joined by a line. the label on the x-axis is bags of caramel corn. the title on the y-axis is total cost in dollars.

what is the constant of proportionality?

3
one-third
2
one-half

3

Step-by-step explanation:

Given : x and y are two quantities.

The graph shows the amount of money paid when purchasing bags of caramel corn at the zoo represented by a line.

Two points through which graph is passing : (0,0) and (1,3)

Slope of graph :

If a directly proportional relationship is represented by a line on a the graph, then the constant of proportionality is the slope of the line.

i.e. The constant of proportionality =3

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