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KonstantinChe [14]
3 years ago
9

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

Mathematics
1 answer:
siniylev [52]3 years ago
5 0
<span>f(x)=3x+8 and g(x)=6x+6

(f + g)(x) = f(x) + g(x)
 
              = </span>3x+8 + (6x + 6) = 3x + 6x + 8 + 6 = 9x + 14<span>

</span>(f + g)(x) = <span> 9x + 14
</span>
(f + g)(-1) = <span> 9*-1 + 14 = -9 + 14 = 5
</span>
<span>(f + g)(-1) = 5</span>
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