Question

Which of the following does not represent a function?

graph of a negative parabola oriented about the y axis with y intercept at positive 6

graph of an absolute value function oriented about the y axis

graph of an ellipse with x intercepts negative 8 and positive 8

graph of a line with a positive slope and y intercept of negative 6

Answer 1

funcion must pass the vertical line test
basically we see if any 1 x value produces 2 y values

we imidiately see the elipse and know that that is the answer


answer is elips is not funciton