Question $2$: On a single figure, plot the following equation.

$\frac{(x{)}^2}{a^2}+\frac{(y{)}^2}{b^2}=1$

where $a=1,5,10,15$ and $b=2,6,13,20.$ What do a and b control?

Question $2$: On a single figure, plot the following equation.

$\frac{(x{)}^2}{a^2}+\frac{(y{)}^2}{b^2}=1$

where $a=1,5,10,15$ and $b=2,6,13,20.$ What do a and b control? Use MatLab or Octave to code, include comments