5) Dada as funções: f(x ) = 7x + 2 e g( x ) = 5x +1, calcule:
a) gof( x ) b) fog( x ) c ) gof(1 ) d) fog( -1 )
+591 I think you mean
5) Given the functions: f (x) = 7x + 2 and g (x) = 5x +1, calculate:
a) g$\circ$f (x)
b) f$\circ$g (x)
c) g$\circ$f (1)
d) f$\circ$g (-1)
a) $g\circ{f(x)}=g(f(x))=g(7x+2)=\boxed{35x+11}$
b) $f\circ{g(x)}=f(g(x))=f(5x+1)=\boxed{35x+9}$
c) $35\cdot1+11=\boxed{46}$
d) $35\cdot(-1)+9=\boxed{-26}$
