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disa [49]
3 years ago
10

How can the equation of a parabola be derived when given the focus and the directrix

Mathematics
1 answer:
erica [24]3 years ago
7 0
If the focus<span> of a </span>parabola<span> is and the </span>directrix<span> is , find the</span>equation<span> of the </span>parabola. Let ( x 0 , y 0 ) be any point on theparabola. Find the distance between ( x 0 , y 0 ) and the focus. Then find the distance between ( x 0 , y 0 ) and directrix<span>.</span>
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Answer:

a.

Step-by-step explanation:

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3 years ago
Use the rewritten formula to find the width of a rectangle with an area of 42 square inches and a length of 16.8 inches.
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Length * Width = Area

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hich of the following expressions is equivalent to |x + 4| &lt; 5? A. –5 &gt; x + 4 &lt; 5 B. –5 &lt; x + 4 &lt; 5 C. x + 4 &lt;
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Answer:

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A. –5 > x + 4 < 5

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C. x + 4 < 5 and x + 4 < –5

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In general , |x|< n where n is positive

Then we translate to -n < x < n

|x + 4| < 5

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Step-by-step explanation:

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