math question4

Question

f(x) = -6x- 1 and g(x) = -(5+4x)

What is the solution for (f - g) (x)?

Answer 1

Hello, thank you for taking the time to post your question!

In this scenario (f - g)(x) means subtracting the two functions, so you want to take f(x) - g(x).

f(x) - g(x) = -6x – 1 – (-(5 + 4x))

= -6x – 1 – (-5 – 4x)

= -6x – 1 + 5 + 4x

= -2x + 4

I hope that helps get you moving in the right direction! Feel free to reach out if you have any additional questions beyond that :)

Answer 2

(f-g) (x) = f(x) - g(x)

So  (f-g) (x) = (-6x-1) - [-(5+4x)] = -6x-1+5+4x = -2x+4