<PRE><B>Question 424512</B>
Suppose that you are given a parabola with two points that have the same y-value, such as (-7,11) and (3,11).Explain how to find the equation for the axis of symmetry of this parabola and then determine this equation.
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The axis of symmetry is the vertical line of symmetry
between -7 and 3.
The distance to the middle is (3 + -7)/2 = -4/2 = -2
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The equation you want is x = -2.
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Cheers,
Stan H.</PRE>