SOLUTION: find the inverse of y=x^2/10. then state whether the inverse is a function.

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Question 210152: find the inverse of y=x^2/10. then state whether the inverse is a function.
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
find the inverse of y = x^2/10
:
Swap y and x, find y
y%5E2%2F10 = x
Multiply both sides by 10
y^2 = 10x
:
y = +/-sqrt%2810x%29; not a function as you can see:
:
Original equation
+graph%28+300%2C+200%2C+-6%2C+5%2C+-10%2C+10%2C+x%5E2%2F10%29+
:
Inverse, fails the vertical line test
+graph%28+300%2C+200%2C+-6%2C+5%2C+-10%2C+10%2C+sqrt%2810x%29%2C+-sqrt%2810x%29%29+