206k views
3 votes
How do i find the inverse

How do i find the inverse-example-1
User Karan Vs
by
8.4k points

2 Answers

3 votes

Answer:
f^(-1)(x) = x²-10x+19

Explanation:

Let's replace f(x) for y for now.


y=√(x-6)+5

To find inverse. make your y into x, and your x into y


x=√(y-6)+5 >Now you solve for y. subtract 5 from both sides


x-5=√(y-6) >Square both sides to get rid of root


(x-5)^(2) =(√(y-6))^(2) >drop root and square (x-5)

(x-5)(x-5) = y-6 >FOIL

x²-5x-5x+25 = y-6 > combine like terms

x²-10x+25 = y-6 >add 6 to both sides

x²-10x+19=y > this is your inverse now put the y into inverse form


f^(-1)(x) = x²-10x+19

User ColinMD
by
8.3k points
2 votes

Explanation:

To solve for inverse, utilize the following steps.

Step 1: let f(x)=y so we get


y = √(x - 6) + 5

Step 2: Swap y and x


x = √(y - 6) + 5

Solve for y.


x - 5 = √(y - 6)


(x - 5) { }^(2) + 6 = y

Step 4: Let y =f^-1(x)


(x - 5) {}^(2) + 6 = f {}^( - 1) (x)

User Shawnone
by
8.0k points

No related questions found