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Kipish [7]
3 years ago
5

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

Mathematics
1 answer:
serg [7]3 years ago
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:

<span>(f-g)(144)=(3)(144)+12
</span>(f-g)(144)=432 +12
<span>(f-g)(144)=444
</span>
Therefore, the answer is 444
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