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Babynini
 one year ago
Parabola help :)
Babynini
 one year ago
Parabola help :)

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Babynini
 one year ago
Best ResponseYou've already chosen the best response.0\[16x^2128x9y^2+400=0\] \[16(x^28x)9y^2+400=0\] \[16(x^28x+1616)9y^2=288\] \[16(x4)^22569y^2=288\] \[16(x4)^29y^2=32\]

Babynini
 one year ago
Best ResponseYou've already chosen the best response.0@jim_thompson5910 I know we just did one like this, but i'm not quite sure where to go next with 9y^2 because it has no match.

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1you don't need to complete the square for y since it's already done think of 9y^2 as 9(y0)^2

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1how did you go from step 2 to step 3?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1idk where that 288 comes from

Babynini
 one year ago
Best ResponseYou've already chosen the best response.0haha oh shoot, that was meant to be 400

Babynini
 one year ago
Best ResponseYou've already chosen the best response.0I don't know where it came from either 0.0

Babynini
 one year ago
Best ResponseYou've already chosen the best response.0wherever 288 is it's 400

Babynini
 one year ago
Best ResponseYou've already chosen the best response.0Yeah. So the thing i'm at right now is \[16(x4)^29y^2=144\]

Babynini
 one year ago
Best ResponseYou've already chosen the best response.0er so the right side is negative. So i divide everything by negative yeah?

Babynini
 one year ago
Best ResponseYou've already chosen the best response.0\[\frac{ (x4)^2 }{ 9}+\frac{ y^2 }{ 16 }=1\]

Babynini
 one year ago
Best ResponseYou've already chosen the best response.0hrm that seems wrong?

Babynini
 one year ago
Best ResponseYou've already chosen the best response.0@ganeshie8 can you check this? :) it doesn't match up with the graph.

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1Looks good, just rewrite it as \[\large \frac{y^2}{16}\frac{(x4)^2}{9}=1\]

Babynini
 one year ago
Best ResponseYou've already chosen the best response.0but that makes the center (1,4)?

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1center is still (4, 0)

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1\[\large \frac{y^2}{16}\frac{(x4)^2}{9}=1\] is same as \[\large \frac{(y0)^2}{16}\frac{(x4)^2}{9}=1\]

Babynini
 one year ago
Best ResponseYou've already chosen the best response.0http://www.wolframalpha.com/input/?i=16x%5E2+%E2%88%92+9y%5E2+%E2%88%92+128x+%2B+400+%3D+0 that's where im confused because the center should be (4,4)

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1rearranging the equation wont change anything

Babynini
 one year ago
Best ResponseYou've already chosen the best response.0oooh oh i see! that's the vertex, not center.

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1Yes center is the midpoint of vertices

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1dw:1433392386227:dw

Babynini
 one year ago
Best ResponseYou've already chosen the best response.0ahh, ok! I wasn't sure about that, so that's where I was confused. Thank you :)

Babynini
 one year ago
Best ResponseYou've already chosen the best response.0now how do I find vertex, foci, asymptotes, dirtrex?

Babynini
 one year ago
Best ResponseYou've already chosen the best response.0asy: a/b(xh)+k so for mine it's \[\pm \frac{ 4 }{ 3 }(x4)\]

Babynini
 one year ago
Best ResponseYou've already chosen the best response.0(with a y = before that)

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1looks good dw:1433393241031:dw

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1scroll down to double check ur answers http://www.wolframalpha.com/input/?i=focus+16x%5E2+%E2%88%92+9y%5E2+%E2%88%92+128x+%2B+400+%3D+0

Babynini
 one year ago
Best ResponseYou've already chosen the best response.0is this correct so far? :)

Babynini
 one year ago
Best ResponseYou've already chosen the best response.0(and DNE on the directrix as well)

Babynini
 one year ago
Best ResponseYou've already chosen the best response.0thank you so so much! ;)

Babynini
 one year ago
Best ResponseYou've already chosen the best response.0dw:1433393976693:dw
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