Question 943049
9x^2 + 25y^2=225
Divide both sides by 225
{{{x^2/25 + y^2/9 = 1}}}
The center is at the origin (0, 0).
The length of the major axis is {{{sqrt(25)}}} = 5 and the length of the minor axis is {{{sqrt(9)}}} = 3.
Therefore, the vertices are (5, 0), (-5, 0), (0, 3), and (0, -3).
Here's the graph:
{{{ graph( 300, 300, -6, 6, -6, 6, sqrt(225-9x^2)/5, -sqrt(225-9x^2)/5) }}}