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Asked Dec 25, 2019
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For Exercise, fill in the blanks. Let |p| represent the focal length (distance between the vertex and focus).If the vertex of a parabola is (−3, 0) and the focus is (−7, 0), then the directrix is given by the equation __________, and the value of p is __________.

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Step 1

Given, vertex and focus of parabola

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vertex = (-3,0) focus = (-7,0)

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Step 2

The directrix of p...

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r = -(-7) x = 7 is the equation of directrix.

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