SOLUTION: The graph of y = 1/2x^2 - bx +2 is tangent to the x -axis. Find the value of b.

SOLUTION: The graph of y = 1/2x^2 - bx +2 is tangent to the x -axis. Find the value of b.

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Question 1111591: The graph of y = 1/2x^2 - bx +2 is tangent to the x -axis. Find the value of b.
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
The graph of y = 1/2x^2 - bx +2 is tangent to the x -axis. Find the value of b.
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Tangent --> discriminant = 0
b^2 - 4ac = 0
b^2 - 4*(1/2)*2 = 0
b = -2, +2

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