Question

Line, parabola, cirlce, ellipse, or hyperbola?
1] 2y=x^2
2] 108y^2-81x=0
3] y=2x+5
4] 10x^2+10y^2=40

Answer 1

1. parabola
2. parabola
3. line
4. ellipse

Answer 2

what about:
121x^2+81Y^2=9801
&
121x^2-81y^2=9801

Answer 3

ellipse
hyperbola

Answer 4

Thank you . (:

Answer 5

Just ask!

Answer 6

If you had to put 25x^2-4y^2=100 in standard form, would it be 25x^2-4y^2-100=0?

Answer 7

No, standard form is the one has radius to the right side!

Answer 8

So it's already in standard form!

Answer 9

ok, what would be its center and vertices?

Answer 10

center (0,0)

Answer 11

circle just have center and radius!

Answer 12

ok thanks, what about this:

write an equation of the hyperbola with the given foci & vertices:
foci: (8,0),(-8,0)
Vertices: (7,0),(-7,0)

Answer 13

Not sure if I 'm correctly, so I'll get back to you with it!