Question

If f(x) varies directly with x and f(x) = 2 when x = 10, then what is the value of f(x) when x = 40?




45




200


8



320

Answer 1

First divide 10 by 2 and you will get 5
This means that when x is 40 we will have to divide it by 5 to get f(x)
40/5 = ? is the answer

Answer 2

8

Answer 3

Sure :)