SOLUTION: find the inverse of the following function: 4x^2+4x+1, x<-1. Verify answer by composing the inverse with the original function.
I switched x and y and got this: (-1+ or - sqrtx) /
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Question 973118: find the inverse of the following function: 4x^2+4x+1, x<-1. Verify answer by composing the inverse with the original function.
I switched x and y and got this: (-1+ or - sqrtx) / 2 . I don't know whether it is + or - ? When I plug it back into the original with the negative it doesn't work out. When I plug it in with the positive it works, but it doesn't agree with the domain. thanks for your help
Answer by josgarithmetic(39620) (Show Source): You can put this solution on YOUR website!
You want the lower branch of the inverse. is what you want.
Domain x<-1 of the given function corresponds to the lower branch of the inverse function:
, this inverse.
Your given function
graph is not perfect but includes the whole function.
x less than -1 was specified.
The inverse needed
graph not perfect. y less than -1 is the range wanted.
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