Question

If f(x)x+12 and g( x)-2x, what is the value of (f -g)(144)?

Answer 1

To find (f - g)(144), subtract g(x) from f(x) with x being 144 and get the result as 444. The value of (f - g)(144) is 444.

Step-by-step explanation:

To calculate the value of (f - g)(144), you need to find the difference between the functions f(x) and g(x) when x is 144. Since f(x) = x + 12 and g(x) = -2x, subtracting g from f gives us: f(x) - g(x) = (x + 12) - (-2x). Substituting x with 144 results in:

f(144) - g(144) = (144 + 12) - (-2 × 144) = 156 - (-288) = 156 + 288 = 444. Thus, the value of (f - g)(144) is 444.

Considering the provided reference information, it does not directly contribute to the computation we performed as the equations given appear disjointed and not related to the functions f(x) and g(x).

Answer 2

First, we want to subtract function f minus function g to get a new function:

(f-g)(x)= x+12 - (-2x)
(f-g)(x)= x+12+2x
(f-g)(x)= 3x+12

Now, we want to plug in 144 for x:

(f-g)(144)=(3)(144)+12
(f-g)(144)=432 +12
(f-g)(144)=444

Therefore, the answer is 444