For a curve to be symmetric about the x-axis, the point (x, y) must lie on the
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For a curve to be symmetric about the x-axis, the point (x, y) must lie on the curve if and only if the point (x, -y) lies on the curve. Explain why a curve that is symmetric about the x-axis is not the graph of a function, unless the function is y = 0.
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A curve cannot be a function when a vertical line intersects it more than once And a curve ...View the full answer
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Related Book For 
Calculus Graphical, Numerical, Algebraic
ISBN: 9780132014083
3rd Edition
Authors: Ross L. Finney, Franklin D. Demana, Bert K. Waits, Daniel Kennedy
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