# Help to calculate max with CAS

**PLEASE HELP**

I need your help please. I am in the last step (step 3) of finishing this paper for my graduate degree, and I do not know what is a CAS or how to use one. Here is my function. I have already determined the maximum population of bacteria using a graphing calculator and saved that image, but I need to repeat the process on a CAS and show an image of it. SAGE has been referred to as the best, but I have no idea where to begin.

The number N of bacteria in a culture at time d, where d is measured in days, is modelled with the following function:

N = (12250d^2 - 2419d + 433768) / (5d^2 -37d+99)

A. Use technology to analyze the modeling function by doingthe following: 1. Use a calculator to determine the number of bacteria whend = 10 N = 7,137.8952bacteria where d = 10

Use a graphing utility to graph and estimate the maximumnumber of bacteria. a. Provide an image of the graphproduced by the graphing utility N = 20,116.296maximum bacteria

Determine the exact value for the maximum number ofbacteria, using a computer algebra system. a. Provide an image of the output fromthe computer algebra system.