Question 805776
You may have been taught that an equation of the form
{{{x^2/a^2 + y^2/b^2 = 1}}}
represents an ellipse centered at the orifgin,
whose axes of symmetry are the x- and y-axes.
Your ellipse obviously crosses the x-axis (where y=0) at
{{{x=-5}}} and {{{x=5}}} .
It obviously crosses the y-axis (where x=0) at
{{{y=-3}}} and {{{y=3}}} .
With that you can sketch like this
{{{drawing(300,200,-6,6,-4,4,
grid(1),
arc(0,0,10,6,0,360)
)}}}