SOLUTION: how to find a b and c, eccentricity, directrix, sf, gf endpoints of LR, LR B, V(vertex) and foci
9x^2 + 4y^2 - 24y -72 + 144 = 0
(ellipse)
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Question 1121763: how to find a b and c, eccentricity, directrix, sf, gf endpoints of LR, LR B, V(vertex) and foci
9x^2 + 4y^2 - 24y -72 + 144 = 0
(ellipse)
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!
...-> I guess you got
major axis is vertical, so compare to , you see that
=>
=>
eccentricity :
first find :
eccentricity: ≈
center: (, )
foci : (, ) and (, )
or ≈ (, ) and (, )
vertices:(, ) and (,)
covertices: (, ) and (, )
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