1. Create a surface plot of F(x,y) = sin( {(x/4)2 + (y/9)2}) for -8x8 and -8 y 8. Use 0.5 as increment, i.e. x = -8, -7.5, -7 7, 7.5, 8 2. Create an Excel table containing the data shown below: Number of weeks employed 2 7 9 1 Number of cars inspected 13 21 23 14 15 21 5 12 (a) Sort the data from smallest to largest. (b) Plot the sorted discrete data (use X-Y Scatter chart type). (c) Draw a 3rd order polynomial trendline though the data, and show the trendline equation on the graph. (d) Using the trendline equation estimate how many cars someone who has been working for 8 weeks can be expected to inspect? (Note they can only inspect whole cars, no fractions. So use ROUND() function for final answer.) 3. Create an Excel table containing the data shown below (use copy and paste to Excel) (a) Convert the distance from inch to meter (use CONVERT() function) (b) Plot the discrete data set Air Velocity (m/s) vs. Distance (m) (note distance is in meters and is plotted on the horizontal axis of a X Y Scatter chart). (c) Draw an exponential trendline through the data set, and show the trendline equation on the graph.