As you may or may not be aware, there are multiple co-ordinate systems by which a graph may be defined. An ellipse graph has the general equation in the following systems:
Cartesian (what most people are used to): (X-H)^2 (Y-K)^2
---------- + ----------- = 1 (A,B,H,K are constants) A^2 B^2
Polar: r(θ)= sqrt( (bcos(θ))^2+(asin(θ))^2 )
Parametric: x = a cos(t) , y = b sin(t)
any graph that is not represented by a line,ie: parabola, hyperbola, circle, ellipse,etc
No. It can also be a circle, ellipse or hyperbola.
ax^2+by^2=k is an ellipse this is not in standard form which is x^2/a^2+y^2/b^2=1 but you will often see ellipses written this way. ellipses are also commonly written in their parametric form which is x=ccos(t) and y=dsin(t). finally a circle is a special case of an ellipse and if a b or k are 0 or negative it is not an ellipse. c and d can be positive but not 0.
No.
ellipse is the shape of an egg
No, the graph of an oval/ellipse is not a function because it does not pass the vertical line test.
The whole ellipse shifts down by 6 units.
If a = b then it is a circle; otherwise it is an ellipse.
any graph that is not represented by a line,ie: parabola, hyperbola, circle, ellipse,etc
No. It can also be a circle, ellipse or hyperbola.
Yes. It's the graph of [ Y = f(X) ] described by (X/A)2 + (Y/B)2 = C2 A, B, and C are constants. If 'A' and 'B' are both '1', then the graph is a circle with radius 'C'.
A hyperbola is another form of a conical section graph like a parabola or ellipse. Its general form is x^2/a - y^2/b = 1.
No. A function is a "graph" the survives the "vertical line test". Namely, it is for every x in its domain, there can be one and only one f(x) in its co-domain. An ellipse clearly fails it at everywhere except it's two vertex. But an ellipse can be thought as two separate functions. A standard ellipse relation, x^2 / a + (y)^2 / b = 1, can be thought as two separate real functions of y1 and y2. where y1 = -y2 exactly.
ax^2+by^2=k is an ellipse this is not in standard form which is x^2/a^2+y^2/b^2=1 but you will often see ellipses written this way. ellipses are also commonly written in their parametric form which is x=ccos(t) and y=dsin(t). finally a circle is a special case of an ellipse and if a b or k are 0 or negative it is not an ellipse. c and d can be positive but not 0.
No. Both foci are always inside the ellipse, otherwise you don't have an ellipse.
No. Both foci are always inside the ellipse, otherwise you don't have an ellipse.
No. Both foci are always inside the ellipse, otherwise you don't have an ellipse.