f (x) = (2x+3) then find [inverse] f-1 (x)
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Answered by
1
Explanation:
Follow the steps:
f(x)=2x+3
1- replace f(x) with y →y=2x+3
2- simply switch xandy so the equation looks like: x=2y+3
3- use algebra to solve for y. (isolate y)
x=2y+3
x−3=2y
x−32=y
This is the inverse function and is written as
f−1(x)=x−32
Follow the steps:
f(x)=2x+3
1- replace f(x) with y →y=2x+3
2- simply switch xandy so the equation looks like: x=2y+3
3- use algebra to solve for y. (isolate y)
x=2y+3
x−3=2y
x−32=y
This is the inverse function and is written as
f−1(x)=x−32
AHMAD1144:
sure about this answer bro ??
Answered by
6
As f(f-¹x)=x .. Put f-¹(x) insteed of x both sides.. And. In lhs F(F-¹(x))=x and in rhsu will find 2(F-¹(x))+3. Equate both sides u will get F-¹(x) = (x-3)/2
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