Help with math?

Question

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Answer 1

1)

The standard form of ellipse equation is

Find the ellipse equation.

Observe the graph,

The center and radius of the circle

The horizontal ellipse equation is

Answer 2

2)

Find length of the minor axis.

Observe the graph,

The center and radius of the circle

Length of the minor axis is

Answer 3

3)

Find the ellipse equation.

Observe the graph,

The center and radius of the circle

The horizontal ellipse equation is

Answer 4

4)

The standard form of ellipse equation is

Find the foci.

Observe the graph,

The center and radius of the circle

Center is

Foci general form is

The foci is