CONIC SECTIONS Graphing Parabolas (Page 2 of 3)

Change the window settings as shown and graph the functions.

WINDOW key....

GRAPH key.

 Calculator screen image. Calculator screen image.

Notice the gap near the vertex. This gap is artificial and should not be there. To correct the problem, we must create a "friendly" window. We want the vertex, which is (-4, 4), to be located at a pixel center. To do this, choose window settings so that Xmax-Xmin is a multiple of 9.4 and Ymax-Ymin is a multiple of 6.2.
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