Posted by Jake on Wednesday, March 25, 2009 at 5:23pm.
Use the functions f(x)=x+4 and g(x)=2x5 to find the specified functions.
(g x f)^1

Math  bobpursley, Wednesday, March 25, 2009 at 5:32pm
Please state in words your notation
(g x f)^1 I assume you do not mean the reciprocal of g times f.

Math  Reiny, Wednesday, March 25, 2009 at 5:36pm
let y = g x f
= (x+4)(2x5)
y = 2x^2 + 3x  20
so the inverse of that is
x = 2y^2 + 3y  20
2y^2 + 3y  20  x = 0
which by the way is not a function
to solve for y you will have to use the quadratic formula and
y = (3 ± √(98(20x))/4
etc.
Answer This Question
Related Questions
 Math  use the functions f(x)=x+4 and g(x)=2x5 to find the specified functions...
 math  for the given functions f and g, find the specified value of the ...
 math  for the given functions f and g, find the specified value of the ...
 precal  for the given functions f & g find the specified value of the ...
 advanced functions/precalculus  1. The function f(x) = (2x + 3)^7 is the ...
 Calculus  We're learning about different kinds of functions and I don't really ...
 Calculus  Find the sum and difference functions f + g and f – g for the ...
 Calculus  Math questions, please help me? :(? Find the composite functions f o ...
 Algebra  Use composition of functions to show that the functions f(x) = 5x + 7 ...
 Math  If the inverses of two functions are both functions, will the inverse of ...
More Related Questions