Question

Hi what is the answer

Answer 1

a) y = 5x

b) y = 60

Explanation:

We can see that when you multiply x by 5, you get the y value.

So, 12*5 = 60.

Answer 2

y = 5x

y = 60 when x =12

Explanation:

Directly proportional means

y = kx where k is the constant of proportionality

We know y and k so we can find k

30 = k*6

Divide each side by 6

30/6 = 6k/6

5 =k

The equation is

y = 5x

We can find y when x=12

y = 5*12

y = 60