1. ## Graphing Hyperbola

Hello, I am having a problem with graphing an hyperbola in the equation of 4y^2/9 - 81x^2=1

I don't know how to set it up to be in the equation of y^2/a^2 - x^2/b^2=1

2. Originally Posted by edgarmcgregor
Hello, I am having a problem with graphing an hyperbola in the equation of 4y^2/9 - 81x^2=1

I don't know how to set it up to be in the equation of y^2/a^2 - x^2/b^2=1
$\frac{4y^{2}}{9} - 81x^{2} = 1$

$\frac{y^{2}}{\frac{9}{4}} - \frac{x^{2}}{\frac{1}{81}}$

this is in the form of $\frac{y^2}{a^2} - \frac{x^2}{b^2} = 1$

where $a = \frac{3}{2} , b =\frac{1}{9}$

Can you graph now??

3. Ah yes, that works quite well! Thank you!