Chapter 7, Problem 20P

To determine

(a)

A user-defined function that plots an ellipse with axes that are parallel to the $x$ and $y$ axes, given the coordinates of its vertices and the coordinates of another point that the ellipse passes through by using $\text{ellipseplot}\left(\text{xc,}\text{yc,}\text{a,}\text{b}\right)$ as function name and arguments;the plot of an ellipse from the coordinates $xc=3.5$, $yc=2$, $a=8.5$ and $b=3$ using the above function.

To determine

(b)

A user-defined function that plots an ellipse with axes that are parallel to the $x$ and $y$ axes, given the coordinates of its vertices and the coordinates of another point that the ellipse passes through by using $\text{ellipseplot}\left(\text{xc,}\text{yc,}\text{a,}\text{b}\right)$ as function name and arguments;the plot of an ellipse from the coordinates $xc=-5$, $yc=1.5$, $a=4$ and $b=8$ using the above function.