The cross-section of a wooden rod is in the shape of an ellipse with height 22 millimeters and width 8 millimeters. Determine the standard equation of the ellipse representing the outline of the cross-section assuming the ellipse is vertical and by letting the center of the section be represented by the point (0,0).

a function could be identified in 3 ways either on a chart,graph, or ordered pairs. first a function is that each point has its own. the rule is that there can be many x's to one y but there can not be 2 x's at different y's. so on a graph when you put a straight line through the y's there should be one dot only to be a function.

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i did it myself and i got 4.2 (b) hope its right

step-by-step explanation: