Question

Find the constant of variation for the relationship f(x)= 40x.

A.
f(x)

B.
x

C.
20

D.
40

Answer 1

We are given the expression f(x) = 40x where f(x) is the dependent variable and x is the independent variable. In this case, we can see that f(x) is directly proportional to x and that the constant of propotionality is 40. Answer then to this problem is D. 40

Answer 2

constant of variation is 40