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Sars Math Portfolio 1. Day (0 = March 28) Cumulative number of deaths 0 53 7 89 14 119 21 182 28 293 35 435 42 526 49 623 56 696 63 764 70 784 77 801 84 809 91 812 The result of plotting the data above using a scatter graph is shown below. The main observations that can be made from this graph is that the start (day 0 to day 30 - approximately) has a constant (approximate again as this is only description of graph) gradient that is lesser than the constant gradient from day 30 to day 60. This part we will call the 'middle'. The 'end' of the graph also has a constant gradient that is similar to the 'start'. Therefore from the graph we can see that the death toll rises constantly for 30 days, then the rate increases significantly for duration of 30 days then decreases back to its lowest level for the last 30 days. Also notice that the graph begins from the y-intercept (which is not 0). 2. y = mx + c We...

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