In this video the tutor shows how to find the mirror point using a quadratic equation. He says that to graph a parabola you need to find the mirror point symmetrical to the Yintercept. Now he explains how to find a mirror point using an example with sample values. He begins with saying that the Ycoordinate of the mirror point is same as the Ycoordinate of the Yintercept. Now you have to find the x coordinate of the mirror point which he shows that it is double the xcoordinate of the vertex. In this way he finally arrives at the mirror point. This video shows how to find the mirror point using a quadratic equation.
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