hey, i was just wondering how I would graph these equations step by step. I have a quiz on them tomorrow and I can't figure them out.

1) y = x(squared)(multiplied by)e(to the x)

2) y = (lnx)(squared)

thanks for your help

Printable View

- May 19th 2005, 08:32 AMwynd90how to graph??
hey, i was just wondering how I would graph these equations step by step. I have a quiz on them tomorrow and I can't figure them out.

1) y = x(squared)(multiplied by)e(to the x)

2) y = (lnx)(squared)

thanks for your help - May 19th 2005, 09:43 AMMathMan
Here are the above questions using Latex:

1. $\displaystyle y=x^2e^x$

2. $\displaystyle y= \ln{x^2}$ - May 19th 2005, 08:33 PMpaultwangQuote:

Originally Posted by**wynd90**

- May 25th 2005, 11:18 AMwynd90nothing to use
hey, i have nothing to use except a scientific calculator and a piece of paper

- May 25th 2005, 12:50 PMpaultwang
Great, you have a calculator.

MathMan, I thinkQuote:

y = (lnx)(squared)

You need x-intercept, y-intercept, extrema (you might not get all three because some functions do not have some), and a few points. You must know the domain (x-range) so you know what to plot. Ask, or determine yourself.

1. Find those by hand or by a calculator... just plug x into the function. A calculator produces a much better estimate for the points.

2. Plot them.

3. Connect the dots as smoothly as possible.