What is the equation of the ellipse with vertices (5, 0), (-5, 0) and co-vertices (0, 4), (0, -4)?

Question

danjs · Answer

standard form when centered at the origin

$$\frac{ x^2 }{ a^2 }+ \frac{ y^2 }{ b^2 } = 1$$

danjs · Answer

intersects x axis at plus or minus a
                   y  axis at plus or minus b

k.binks · Answer

I'm sorry, I still don't understand. This is the first time I've done an assignment on ellipses. Could you show me step by step how to do this?

loser66 · Answer

|dw:1438037613693:dw|
plug into the standard form above. done

loser66 · Answer

still not get?? or doubt because how easy it is??? hahaha.... it is really easy!!

k.binks · Answer

I am really, really bad at math. I can never tell if I'm doing it right when I plug in equations. x^2/25 +y^2/16= 1?

loser66 · Answer

yes, that is it!!

k.binks · Answer

Great, thankyou!