How to graph a Quadratic equation. I have an equation that goes: $0.0001x^2 - 0.22x + 197$. I'm not asking for the answer, but instead, how can I graph it without dealing with these insanely tough numbers.
As suggested by Claude Leibovici, you can define $x=100X$. Then you have 

$$\begin{array}{ll} 0.0001x^2−0.22x+197 &amp;= 0.0001\cdot (100X)^2−0.22\cdot 100X+197 \\ &amp; = X^2+22X+197\end{array} $$

which is easier to work with.
As suggested by Claude Leibovici, you can define $x=100X$. Then you have 

$$\begin{array}{ll} 0.0001x^2−0.22x+197 &amp;= 0.0001\cdot (100X)^2−0.22\cdot 100X+197 \\ &amp; = X^2+22X+197\end{array} $$

which is easier to work with.