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Mathematics 10 Online
OpenStudy (anonymous):

write the equation for the following graph http://tinypic.com/view.php?pic=2z9k6qx&s=7

OpenStudy (anonymous):

y^2/(3/sqrt65)^2 -x^2 = 1

OpenStudy (anonymous):

Looks like the MPG in Tron Space Paranoids thing

OpenStudy (anonymous):

thanks estu

OpenStudy (anonymous):

Let me think, have I got the signs right?

OpenStudy (dumbcow):

if its "+" that makes it an ellipse so it has to be "-"

OpenStudy (anonymous):

I'm just wondering if I have them reversed...

OpenStudy (anonymous):

That can't be right, dumbcow.

OpenStudy (dumbcow):

here is a helpful reference sheet for these types of graphs

OpenStudy (anonymous):

when x is 8, y is 3 according to the graph.

OpenStudy (dumbcow):

what did i do wrong?

OpenStudy (anonymous):

ur result does not satisfy x is 8, y is 3.

OpenStudy (anonymous):

Mine does.

OpenStudy (dumbcow):

yeah you're right...but the asymptote is y=+- 1/3 x so a =1, b=3

OpenStudy (anonymous):

can u guys help me on my most recent question aswell its the same as this

OpenStudy (anonymous):

asymptote is plus minus 3/sqrt65

OpenStudy (anonymous):

y= 3x/sqrt65

OpenStudy (dumbcow):

ok how did you get sqrt(65)

OpenStudy (anonymous):

That comes from the graph and points (0,1) and (8,3)

OpenStudy (anonymous):

To get b

OpenStudy (dumbcow):

ok thanks

OpenStudy (anonymous):

Your procedure is right, I think u just misread the graph.

OpenStudy (dumbcow):

ok it depends if the graph is exactly on (8,3) its hard to tell i just assumed because it had the area from x=-3 to x=3 boxed off as a give away that b=3

OpenStudy (anonymous):

Maybe, we shouldn't have to depend on a low res graph for this kind of question.

OpenStudy (anonymous):

And I hate doing computations....!

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