Given f(x) = 5 find if f(x) = - 3x - 4

The answer is -3*5-4= -15-4=-19. So given f(x)=5 then x=-19.

Step-by-step explanation:

So basically when it says f(5) that means we need to plug in x=5 into the equation -3x-4. So lets solve, -3*5-4=-19. I  hope this helps if you need any clarfication please comment. Please dont tell me you are cheating on a quiz/test/assestment. Cheating does not help you by the way!

it would be 6xy and -16xy.

answer: i think it is c