SOLUTION: A) Use the vertical ling test to determine whether the equation x=y^2-1 represents y as a function of x. B) if the graph fails, draw a vertical line on the graph which indicates th

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Question 189645: A) Use the vertical ling test to determine whether the equation x=y^2-1 represents y as a function of x. B) if the graph fails, draw a vertical line on the graph which indicates the equation is NOT a function.
Answer by user_dude2008(1862)   (Show Source): You can put this solution on YOUR website!
Graph of x=y^2-1 fails vert. line test. So x=y^2-1 is not a function

Ex: Draw a vertical line at x=1. Line passes through 2 points on graph

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