SOLUTION: f(x)=2x+9 and g(x)=x^2+4 what is the value of f(g(4)) and f(g(x))?

Algebra ->  Square-cubic-other-roots -> SOLUTION: f(x)=2x+9 and g(x)=x^2+4 what is the value of f(g(4)) and f(g(x))?      Log On


   

Question 183163This question is from textbook Algebra 2
: f(x)=2x+9 and g(x)=x^2+4
what is the value of f(g(4))
and
f(g(x))? This question is from textbook Algebra 2

Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
f(x)=2x+9 and g(x)=x^2+4
f(g(x))=2(x^2+4)+9
=2x^2+8+9
=2x^2+17
.
f(g(4))=2(16+4)+9
=2*20 +9
=49
.
Ed