Question

For f(x)=4x+1 and g(x)=x^2-5 find (f-g)(x).

A) -x^2+4x-4
B)4x^2-19
C)-x^2+4x+6
D)x^2-4x-6

Answer 1

basically, subtract what f(x) is equal to, from g(x)

in this case, (g-f)(x) means

(x^2-5)-(4x+1)

can you calculate that?

Answer 2

@SolomonZelman (f-g)(x) is what the problem says.

Answer 3

Maybe I interpreted it the wrong way; sorry if I did.

Answer 4

@KeishaCx , do you know how to calculate \[(x^2-5)~~-~~(4x+1)\]

Answer 5

(f-g)(x)=4x+1-(x^2-5)=4x+1-x^2+5=-x^2+4x+6

Answer 6

oh, yeah, my bad, the other way, sorry, Mertsj, continue.