froggy777
Answered

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PLS HELP i just need the answer :,(((((

what is the equation of the quadratic graph with a focus of (5, −1) and a directrix of y = 1?

Sagot :

ChinChin0715

Answer:

check the picture below.

so the focus point is at 5, -1 and the directrix is above it, meaning is a vertical parabola, and is opening downwards, like in the picture.

keep in mind that the vertex is half-way between those two fellows, at a "p" distance from either, in this case 1 unit, since the parabola is opening downwards, "p" is negative then, or -1, and the vertex will be from 5, -1 up one unit, so 5,0.

View image ChinChin0715
View image ChinChin0715
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