Question

Do these pairs of values (x and y) represent two quantities that are

proportional?
ху
3 12
520
624
9 36

Answer 1

yes

Explanation:

Each value of x multiplied by 4 gives the corresponding value of y, that is

3 × 4 = 12

5 × 4 = 20

6 × 4 = 24

9 × 4 = 36

Thus x and y are proportional and the constant of proportion is 4