SOLUTION: How do I find the x-coordinate of the vertex of the the graph? y=2x(squared)-40x+10

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Question 182348This question is from textbook College Algebra in Context
: How do I find the x-coordinate of the vertex of the the graph?
y=2x(squared)-40x+10
This question is from textbook College Algebra in Context

Answer by nerdybill(7384) About Me  (Show Source):
You can put this solution on YOUR website!
The general form of a quadratic is:
y = ax^2 + bx + c
where
a,b, and c are the coefficients
.
The x-axis of symmetry is then
x = -b/2a
.
So, for your equation:
y=2x(squared)-40x+10
x = -(-40)/2(2)
x = 40/4
x = 10
.
This site might help you review:
http://www.mathwarehouse.com/geometry/parabola/standard-to-vertex-form.php