SOLUTION: What is the increasing interval of y=x^2-2x-3

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Question 428247: What is the increasing interval of y=x^2-2x-3
Answer by Gogonati(855) About Me  (Show Source):
You can put this solution on YOUR website!
Solution: The function y=x%5E2-2x-3 is an upward parabola. To find the increasing
interval we need its vertex, since for x=-b%2F2a, we have a minimum.
-b%2F2a=2%2F2=1 and the increasing interval is:
( 1, %2Binfinity).