SOLUTION: I need to know the y-value of f(x)=-x^2+10x+10.Thank you

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Question 766442: I need to know the y-value of f(x)=-x^2+10x+10.Thank you
Answer by josgarithmetic(39626)   (Show Source): You can put this solution on YOUR website!
This is a function having infinite number of y-values. It has a maximum y value.
If you will add and subtract , you can transform into


The vertex is at the maximum, so all y values are LESS than or equal to (5,-35).




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Done using Completing the Square.
Do you need to see the steps?

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