Question

The function f(x) varies directly with x and f(x) = 12 when x = ¼. What is f(x) when x = 1/8?

Answer 1

Answer:

6.

Step-by-step explanation:

f(x) = kx where k is a constant

Plugging in the given values:

12 = k * 1/4

48 = k

So the relation is

f(x) = 48x

So when x = 1/8

f(x) = 48 * 1/8 = 6.