SOLUTION: What direction does the parabola y = 2(x - 1)2 - 5 open? upward, downward, right or left?

Question 333574: What direction does the parabola y = 2(x - 1)2 - 5 open?
upward, downward, right or left?
Answer by unlockmath(1688) (Show Source): You can put this solution on YOUR website!
Hello,
I'm assuming the 2 after the parenthesis is to the second power or written as:
y = 2(x - 1)^2 - 5
This can be rewritten as:
y=2x^2-4x-3
It opens upward.
(Hint: If the x^2 is positive then "up", if it's negative then it opens down.
Does this make sense to you?
RJ
www.math-unlock.com
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