Question 303441
<pre><font size = 4 color = "indigo"><b>
{{{(x-4)^2/25+(y+8)^2/81=1}}}

When in standard form the major axis is twice
the square root of the larger denominator.

Twice the square root of the larger denominator =

Twice the square root of 81 =

Twice 9 =

18.

Edwin</pre>