Asked by Steve
f(x)=3x-7 and g(x) = -2x-6 find (fog)(4)
Answers
Answered by
Reiny
(fog)(4) = f( g(4) ) , g(4) = -2(4)-6 = -14
= f(-14)
= 3(-14) - 7
= -49
or
f( g(x) )
= f(-2x-6)
= 3(-2x-6) - 7
= -6x - 25
f( g(4) ) = -6(4) - 25 = -49
= f(-14)
= 3(-14) - 7
= -49
or
f( g(x) )
= f(-2x-6)
= 3(-2x-6) - 7
= -6x - 25
f( g(4) ) = -6(4) - 25 = -49
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