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Wednesday, December 25, 2013

Web of Lies

GAUTENG department OF study SENIOR SECONDARY INTERVENTION course of instruction M ATHEMATICS configuration 11 posing 20 (LEARNER NOTES) mathematical MODELLING Learner Note: numeric modelling is the diligence of functions in the real world. Data is represented on a resolve plot and the trend of the data is modelled by a line or pervert of best fit. partition A: TYPICAL EXAM QUESTIONS Question 1 (15 minutes) The table below represents the number of people infected with a deadly new(a) virus from the year cc2 to 2007. Year 2002 2003 2004 2005 2006 2007 (a) (b) Number of infections 118 123 131 134 136 138 dupe a go around plot to represent this data. (2) Explain whether a linear, quadratic or exponential curve would be a line or curve of best fit. (1) Page 1 of 8 GAUTENG department OF EDUCATION SENIOR SECONDARY INTERVENTION PROGRAMME M ATHEMATICS GRADE 11 SESSION 20 Question 2 (LEARNER NOTES) (15minutes) A parachutist jumps out of a cleaver and his point above ground level is estimated at various beat aft(prenominal) he opened his parachute. The following table gives the results of the observations where y measures his height above ground level in metres and t represents the time in seconds after he opened his parachute. t y (a) 2 500 3 300 4 200 5 120 6 70 7 40 8 20 Draw a crack up plot for the above information.
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(2) 600 550 500 450 400 350 300 250 200 150 100 50 0 0 1 2 3 4 5 6 7 8 9 (b) Describe the c urve of best fit. (1) (c) utilize ! the scatter plot to estimate the height of the parachutist 5,5 seconds after he had opened his parachute. (1) Page 2 of 8 GAUTENG department OF EDUCATION SENIOR SECONDARY INTERVENTION PROGRAMME M ATHEMATICS GRADE 11 SESSION 20 (LEARNER NOTES) SECTION B: SOLUTIONS AND HINTS Question 1 (a) ? all points plotted correctly. (2) (b) ? answer Linear...If you assume to get a full essay, order it on our website: OrderCustomPaper.com

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