SOLUTION: Find the inverse of y=7x^2-3.

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Question 212300: Find the inverse of y=7x^2-3.
Answer by drj(1380) About Me  (Show Source):
You can put this solution on YOUR website!
Find the inverse of

y=7x%5E2-3 or x=f%28y%29

Step 1. Add 3 to both sides of equations

y%2B3=7x%5E2-3%2B3
y%2B3=7x%5E2

Step 2. Divide 7 to both sides of equations

%28y%2B3%29%2F7=x%5E2

Step 3. Take square root of both sides

sqrt%28%28y%2B3%29%2F7%29=x

Step 4. The inverse is

x=sqrt%28%28y%2B3%29%2F7%29