Q15. Create x and y vectors to represent the following data: (3 marks) x 10 20 Y 23 45 30 60 B2 40 50 60 70 80 90 140 167 198 200 220 100 1. Use the polyfit function to fit the data for a second-order polynomial. 2. Create a vector of new x values from 10 to 100 in intervals of 2. Use your new vector in the polyval function together with the coefficient values found in part 1 to create a new y vector. 3. Plot the original data as circles without a connecting line and the calculated data as a solid line on the same graph