document.write( "Question 678976: f(x) = 3x – 7 and g(x) = –2x – 6. Find (ƒ ∘ g)(4) \n" ); document.write( "

Algebra.Com's Answer #421719 by santukeerti(5) $\"\"$ $\"About$

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(fo g)(4)
\n" ); document.write( "f(g(4))
\n" ); document.write( "but g(x)=-2x-6
\n" ); document.write( "so g(4)=-2*(4)-6
\n" ); document.write( "g(4)=-8-6
\n" ); document.write( "g(4)=-14
\n" ); document.write( "now
\n" ); document.write( "f(g(4))=f(-14)
\n" ); document.write( "but f(x)=3x-7
\n" ); document.write( "so f(-14)=3*(-14)-7
\n" ); document.write( "f(-14)=-42-7
\n" ); document.write( "f(-14)=-49
\n" ); document.write( "therefore (f o g)(4)=-49 \n" ); document.write( "

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