# SOLUTION: What is the Y coordinate of the vertex for the quadratic: y = x^2 -8x -9 Please show your work Thank you

Algebra ->  -> SOLUTION: What is the Y coordinate of the vertex for the quadratic: y = x^2 -8x -9 Please show your work Thank you      Log On

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 Click here to see ALL problems on Quadratic Equations Question 737763: What is the Y coordinate of the vertex for the quadratic: y = x^2 -8x -9 Please show your work Thank youFound 2 solutions by Susan-math, MathLover1:Answer by Susan-math(40)   (Show Source): You can put this solution on YOUR website!Find then substitute that for x to find the corresponding y: So Answer by MathLover1(7480)   (Show Source): You can put this solution on YOUR website!..first write it in vertex form where and are and coordinates of vertex ...complete the square so, and coordinate of vertex is see it on a graph: