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Since it passes though (-4,-6), then it opens either left or downward, but since it is parallel to the x-axis, then it opens to the left. The equation of the parabola that opens to the left with vertex at the origin is:
You are given the coordinates, use the coordinates to find a by substituting.

Substitute the value of a in the equation.

The equation of the parabola is y²=18x. Hope this helps =)
0 0 0
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