focus
There are two points: the foci.
No there can never be a single point. But yes there are two such points called foci( each called focus) that helps to define an ellipse. An ellipse can then be defined as a curve which is actually the locus of all points in a plane,the sum of whose distances from two fixed points (the foci) is a given(positive)constant . This is further expressed mathematically to obtain the equation of an ellipse.
Just like any other equation, you can set up a table of x values, and calculate the corresponding y values. Then plot the points on the graph. In this case, it helps to have some familiarity with quadratic equations (you can find a discussion in algebra books), and recognize (from the form of the equation) whether your quadratic equation represents a parabola, a circle, an ellipse, or a hyperbola.
I do not think that they have a name. You are talking about two parabola's on top or side of eachother. I don't think they have a specific name but they are not a straight line so you can't call them parallel. I think its just called two parabolas that never cross. Hope this helps!!
directrix
focus
There are two points: the foci.
No there can never be a single point. But yes there are two such points called foci( each called focus) that helps to define an ellipse. An ellipse can then be defined as a curve which is actually the locus of all points in a plane,the sum of whose distances from two fixed points (the foci) is a given(positive)constant . This is further expressed mathematically to obtain the equation of an ellipse.
Just like any other equation, you can set up a table of x values, and calculate the corresponding y values. Then plot the points on the graph. In this case, it helps to have some familiarity with quadratic equations (you can find a discussion in algebra books), and recognize (from the form of the equation) whether your quadratic equation represents a parabola, a circle, an ellipse, or a hyperbola.
It is difficult to say since there is no such word as elipse. It could be a failed attempt at ellipse or eclipse and the answer will depend on which it was meant to be.
the graph of a quadratic function is a parabola. hope this helps xP
right apex. hope that helps
of Originate
I’m assuming you mean x = ay^2 the answer would be Right. Because it is positive. hope this helps! (:
The President is the Commander-in-Chief of the military. This helps define the President's executive power, as he is also in charge of the United States.
It helps politicians win support from their constituents