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cecy122 cecy122
  • 05-07-2016
  • Mathematics
Answered

let f(x)=-2x-7 and g(x)=-4x+6 find (g o f )(-5)

Verified Answer :

apologiabiology
apologiabiology apologiabiology
  • 06-07-2016

easy

(g o f)(-5)=g(f(-5))


first evaluate f(-5), then input the result into g(x)

f(-5)=-2(-5)-7
f(-5)=10-7
f(-5)=3

g(3)=-4(3)+6
g(3)=-12+6
g(3)=-6

(g o f)(-5)=-6

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