SOLUTION: If f(x)= x^2 + 3, g(x)=4x, the value of g(f(6)) is ?

Question 571039: If f(x)= x^2 + 3, g(x)=4x, the value of g(f(6)) is ?
Found 2 solutions by nyc_function, richard1234:
Answer by nyc_function(2741) (Show Source): You can put this solution on YOUR website!
First find f(6).
f(6) = (6)^2 + 3

f(6) = 36 + 3

f(6) = 39

Now plug 39 into g(x).

g(x) = 4x

g(f(6)) = 4x

g(39) = 4(39)

The answer is 156.

Answer by richard1234(7193) (Show Source): You can put this solution on YOUR website!
g(f(6)) means "g of f(6)," so find f(6).

f(6) = 6^2 + 3 = 39

So g(f(6)) = g(39) = 4*39 = 156
RELATED QUESTIONS
What is the value of f(g(9)) if f(x)=4x^2-6 and... (answered by josgarithmetic,ikleyn)
Suppose f(x)=4x-2 and g(x)=-2x+1 What is the value of... (answered by nerdybill)
If f(x) = 2x + 3 and g(x) = (x - 3)/2, what is the value of f[g(-5)]? (answered by jenrobrody,Edwin McCravy,aaaaaaaa)
If f(x-1)=6x and g(x)=x+3, what is the value of f(g(2))... (answered by Boreal)
If f(x) = -4x +5 and g(x) = |x-6| then what is... (answered by stanbon)
find the value if f(x)=5/x+2 and g(x)=-2x+3 1.)f(-4) 2.)g(1/2 3.)g(-6)... (answered by math_helper,MathTherapy,ikleyn)
If {{{ f(x) = 2 ^ X }}} and {{{ g(x) = x^2 - 1}}}, determine the value of (f o... (answered by solver91311)
What is the value of g(x) - f(x) if: f(x) = 2x + 4 g(x) = 3x - 2 x =... (answered by Theo)
f(x)=4x-1 g(x)=3-5x^2 find the compostion g of... (answered by venugopalramana)