# How do I find an appropriate exponential model of given data points on a TI-83?

##### 1 Answer

Jan 21, 2015

Getting the exact model is a kind of a trial and error process, but this is how you do it.

First, you input all your data points into your scatter plot (STAT

graph{y=2(3)^x [-40, 40, -20, 20]}

Exponential Growth

graph{y=logx [-40, 40, -20, 20]}

Logarithmic

graph{y=2(3)^-x [-40, 40, -20, 20]}

Exponential Decay

Once you've got that, just go to your STAT key, scroll over to CALC, and select the correct model.

Hope that helped :)