Question: Hello can someone help me solve the problem about parabola Problem: A parabolic mirror has a depth 20 cm at the center and the distance

Hello can someone help me solve the problem about parabola

Problem: A parabolic mirror has a depth 20 cm at the center and the distance across the top of the mirror is 80 cm.

a.) find the distance from the vertex to the directrix

b.)What equation of a parabola satisfies the conditions given? Why?

c.) what is the total length of latus rectum

d.) How wide is the mirror 8cm above the vertex

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