the exponential function and scatter diagram

Note that you are asked to use a graphing utility in this assignment. A recommended online utility is (Links to an external site.). It allows graphing and then copying and posting into a Word document.

Using a graphing utility, draw a scatter diagram with month and weight as your variables.
Using a graphing utility, build an exponential model from the data
Express the weight as a function of months.
Graph the exponential function in the scatter diagram.
Interpret the parameters of this function
Determine the half -life of the radioactive material.
How much radioactive material will be left after 30 months?
When will you have 40 grams of this radioactive material?