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

1 answer:

7 0

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

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