Identify the graph of each of the following as a circle, an ellipse, a hyperbola, or a parabola.
(1) 4x^2 +y^2 =4 --> Ellipse
(2) y= x^2 -4 --> hyperbola but the y isn't squared so?
(3) y^2= x^2-4 --> hyperbola
(4) y^2= 4-x^2 --> er----
2007-02-07 21:52:45 · 3 answers · asked by Kala J 3 in Science & Mathematics ➔ Mathematics
1) correct.
2) It's a parabola (U shaped curve) because only x is squared.
3) correct.
4) It's a circle if you add x^2 to both sides: y^2 + x^2 = 4.
2007-02-07 23:11:26 · answer #1 · answered by mirramai 3 · 0⤊ 0⤋
(1) ellipse
(2) parabola
(3)hyperbola
(4) circle
2007-02-08 06:32:00 · answer #2 · answered by santmann2002 7 · 1⤊ 0⤋
1>ellipse
2>parabola not hyperbola..
a parabolic eqn is of the form y^2=4ax+c or x^2=4ay+c
the above given equation is of the second form..
where a=1/4,c=4...
graph:its like a parabola with vertex on the y-axis..
3>hyperbola
4>circle
2007-02-08 07:13:34 · answer #3 · answered by red 1 · 0⤊ 0⤋