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anonymous
 4 years ago
find the vertex,focus and directrix and the correct graph of the equation 8(x+3)=(y+2)^2
anonymous
 4 years ago
find the vertex,focus and directrix and the correct graph of the equation 8(x+3)=(y+2)^2

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anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0http://www.wolframalpha.com/input/?i=8%28x%2B3%29%3D%28y%2B2%29%5E2

campbell_st
 4 years ago
Best ResponseYou've already chosen the best response.1rewrite the equation 8(x + 3) = (y+2)^2 general form for a parabola about the yaxis is 4a( x h) = (yk)^2 (h, k) is the vertex, x = a is the equation of the directrix and (h+a, k) is the focus.. vertex is (3, 2) a = 2 so the equation of the directrix is x = 2.... I'll let you figure the focus... just for something to do

dumbcow
 4 years ago
Best ResponseYou've already chosen the best response.0solve for x x = (1/8)(y+2)^2  3 vertex: (3, 2) directrix: x = 3 1/(4a) a = 1/8 > x = 3 2 = 5 Focus: (3 +2, 2) = (1,2)
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