Question

Which of the following functions is a direct variation?

a. (f(x) = 2x)

b. (f(x) = 2)

c. (f(x) = x + 2)

Answer 1

The function that represents a direct variation is a. (f(x) = 2x).

Step-by-step explanation:

The function that represents a direct variation is a. (f(x) = 2x).

In a direct variation, the output (y) is directly proportional to the input (x), and the equation takes the form y = kx, where k is a constant. In this case, the constant k is 2, so the function is f(x) = 2x.