SOLUTION: Let f(x)=3x+2. Find f(f(1))

Question 1191745: Let f(x)=3x+2. Find f(f(1))
Answer by ikleyn(52776) (Show Source): You can put this solution on YOUR website!
.


First calculate f(1) by substituting the value of 1 instead of x into the formula for f(x)


    f(1) = 3*1 + 2 = 3 + 2 = 5.


To find f(f(1)),  replace the interior f(1) by 5, since you just calculated it. 
You will get


    f(f(1)) = f(5) = 3*5 + 2 = 15 + 2 = 17.


ANSWER.  f(f(1)) = 17, and you know now how to find it.

Solved and explained.

RELATED QUESTIONS
Let f(x) = 3x. Find f( 2). (answered by Tatiana_Stebko)

Let f(x) = 3x. Find f(... (answered by stanbon)

Let f (x) = x to the power of 2 + 3x -3 find f (-4) ; f (-1) ;... (answered by math-vortex)

let f(x)=3x+2 , find f(-3) (answered by Fombitz)

Let f(x)=3x-1 and g(x)=x^2+2 find... (answered by Fombitz)

Let f(x) = 1-2x g(x)= 3x^2-2 find... (answered by rapaljer)

Let f(x)= 3x-1 and g(x) =x^2 find... (answered by jim_thompson5910)

let f(x)=x^2-3x find f(1- square root of... (answered by Fombitz)