Point E is drawn on the graph so that line EF is parallel to line CD. On a coordinate plane, line C D goes through (negative 10, negative 2) and (10, 6). Point F is at (6, negative 4).

If the coordinates of point E are (, y), what is the value of y?

−8
−4
0
8

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yx = 36

step-by-step explanation:

cos f = opposite side/ hypotenuse

cos f = yw / yx

we know cos f = 4/9 and yw =16

4/9 = 16/yx

multiply each side by yx

4/9 yx = 16/ yx * yx

4/9 yx = 16

multiply each side by 9/4

9/4 * 4/9 yx = 16 *9/4

yx = 36