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Use a graphing utility to graph /> y=x2−64x+720 in a standard viewing rectangle. What do you​ observe? b. Find the coordinates of the vertex for the given quadratic function. c. Find a viewing rectangle that will give a relatively complete picture of the parabola. d. In​ general, explain how knowing the coordinates of a​ parabola’s vertex can help determine a reasonable viewing rectangle on a graphing utility for obtaining a complete picture of the parabola.

/in /by

Use a graphing utility to graph

/>

y=x2−64x+720 in a standard viewing rectangle. What do you​ observe?

b.

Find the coordinates of the vertex for the given quadratic function.

c.

Find a viewing rectangle that will give a relatively complete picture of the parabola.

d.

In​ general, explain how knowing the coordinates of a​ parabola’s vertex can help determine a reasonable viewing rectangle on a graphing utility for obtaining a complete picture of the parabola.

 
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