Which of the following does not represent a function? a. graph of an absolute value function b. graph of a negative parabola oriented about the y axis with y intercept at positive 6 c. graph of an ellipse with y intercepts negative 7 and positive 7 d. graph of a line with a positive slope and y intercept of negative 6

C. graph of an ellipse with y intercepts negative 7 and positive 7

Explanation:

An ellipse is an oval shape.  In order to represent a function, a graph must pass the vertical line test; that is, a vertical line drawn through any area of the graph must only pass through one point.  In an oval, or ellipse, a vertical line will pass through twice; this means it is not a function.

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step-by-step explanation:

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