Question

If x is directly propotional to y
Given that x=8 and y=2
find x=4.

Answer 1

1

Explanation:

Using similarity

8/4 = 2/y

2 = 2/y

2y = 2

y = 2/2

y = 1

Answer 2

Just do 8/4 = 2/y, should be correct.