Question

f(x) = x^2-5
g(x) = 4x - 4
Find (f-g) (5)

Answer 1

Answer:

The correct answer option is: 4.

Step-by-step explanation:

We are given the following two functions and we are to find the value of $( f - g ) ( 5 )$:

$f(x) = x^2 - 5$

$g(x) = 4x - 4$

Finding $( f - g ) ( x )$:

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

$( f - g ) ( x ) = x^2-4x-1$

So, $( f - g ) ( 5 ) = (5)^2-4(5)-1 = 4$