Question

If f(x) = 2x - 6 and dx) = 3x + 9, find (f - g(x).
O A. (f- g)(x) = -x- 15
O B. (f- g)(x) = x + 15
O C. (f- g)(x) = -x+ 3
O D. (f - g)(x) = 5x + 3

Answer 1

Answer:

A

Step-by-step explanation:

Given that f(x) is 2x-6, and g(x) is 3x+9, all we have to do is subtract in order to find (f(x)-g(x)):

$(f(x)-g(x))=\\\2x-6-(3x+9)=\\2x-6-3x-9=\\-x-15$

$\fbox{A}$

I hope this helps! Let me know if you have any questions :)