SOLUTION: Parabola that only touches the x-axis once. (Equation)

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Question 992923: Parabola that only touches the x-axis once.
(Equation)
Answer by ikleyn(52781) About Me  (Show Source):
You can put this solution on YOUR website!
.
1. y = x%5E2.

2. y = %28x-1%29%5E2.

3. y = %28x%2B1%29%5E2.