# Homework Help: How to sketch y=(-3x^2 +1)/(x^2)

1. Feb 10, 2010

### TyErd

How to sketch y=(-3x^2 +1)/(x^2)

2. Feb 10, 2010

### Mentallic

Re: Truncus

Similar deal to your hyperbola question you made previously.

$$\frac{-3x^2+1}{x^2}=\frac{-3x^2}{x^2}+\frac{1}{x^2}=-3+\frac{1}{x^2}$$

so now you should be able to sketch the graph using already known graphs such as $y=\frac{1}{x^2}$

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