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The equation is .
Rewrite the equation
The above equation compare with
Then
Graph the related function
The equation of axis of symmetry is
(Substitute B = 10 and A = 1)
(Simplify)
Substitute in the above function
(Evalute power: )
(Multiply: )
(Add: )
(Subtract: )
The coordinates of the vertex are
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Graph:
Above the graph the x-intercept is .
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