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19 January, 07:00

X|Y

-|-

8|1.6

15|3

22|4.4

What is the constant rate of proportionality in the equation y=rx

+1
Answers (1)
  1. 19 January, 08:22
    0
    The constant rate of proportionality is r = 0.2

    Step-by-step explanation:

    We have an equation in the following format:

    y = rx

    In which r is the constant rate of proportionality.

    To find r, we find a pair of x and y and replace.

    8|1.6

    This means that when x = 8, y = 1.6. So

    y = rx

    1.6 = 8r

    8r = 1.6

    r = 1.6/8

    r = 0.2

    The constant rate of proportionality is r = 0.2
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