SOLUTION: find the vertex, y intercept and x intercept if any exist of f(x)=-xSQUARED+2x+8

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Question 250265: find the vertex, y intercept and x intercept if any exist of f(x)=-xSQUARED+2x+8
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
f(x)=-x^2+2x+8
+graph%28+300%2C+200%2C+-6%2C+5%2C+-10%2C+10%2C+-x%5E2+%2B2x+%2B8%29+ (graph 300x200 pixels, x from -6 to 5, y from -10 to 10,
-x^2 +2x +8).
Vertex=(1,9)
Y intercept=8
X intercepts=-2 & 4