This is the first lecture in a series on Leaving Cert. Applied Mathematics I am currently producing. Here I will be explaining the course content relevant to question 1 the Applied Mathematics paper. Additional information about the series as well as supplementary materials etc. are available at my website, sites.duke.edu/brendanwilliamson
The worksheet for this lecture can be found at http://sites.duke.edu/brendanwilliamson/files/2013/10/Worksheet-1.pdf