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Given f(x)=3x+8 and g(x)=6x+6 then what is (f−g)(−1))

Given f(x)=3x+8 and g(x)=6x+6 then what is (f−g)(−1))
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4 votes
Given f(x)=3x+8 and g(x)=6x+6
then what is (f−g)(−1))

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User Onilol
by
8.0k points

1 Answer

7 votes
f(x)=3x+8 and g(x)=6x+6

(f - g)(x) = f(x) - g(x)

= 3x+8 - (6x + 6) = 3x - 6x + 8 - 6 = -3x + 2

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

(f - g)(-1) = -3*-1 + 2 = 3 + 2 = 5

(f - g)(-1) = 5
answered
User Zlaval
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7.9k points
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