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Mathematics, 07.07.2021 19:30 acharity196

The image of a parabolic mirror is sketched on a graph. The image can be represented using the function y = -1/8x^2+2, where x represents the horizontal distance from the maximum depth of the mirror and y represents the depth of the mirror as measured from the x-axis. How far away from the maximum depth is a point on the mirror that is 7/8 inches jn depth?
3 inches
4 inches
5 inches
6 inches

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