Question

Which function represents the equation of the line?

A. f(x)= -x-4
B. f(x)= -x+4
C. f(x)= x-4
D. f(x)= x+4

Answer 1

Since the line goes from bottom left to top right, the slope is positive. So, the answer is either C or D.

Moreover, the function passes through [/tex] (0,-4) [/tex], which means that the answer is C. In fact, you have

`f(x) = x-4 \implies f(0) = 0-4 = -4`

Answer 2

f(x)= x-4

Explanation:

I just took the test :)