# Smallest Possible Value of y

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• Aug 12th 2009, 02:53 PM
sharkman
Smallest Possible Value of y
If y = (4 - x)^2, what is the smallest possible value of y?
• Aug 12th 2009, 03:02 PM
pickslides
Quote:

Originally Posted by sharkman
If y = (4 - x)^2, what is the smallest possible value of y?

The function $y = (4 - x)^2$ is simply $y=x^2$ moved horizontally and reflected. Therefore it will have the same min value for for y that $y=x^2$ has.