NOTE: Please include all MATLAB scripts. Question 1 Solve the following set of linear equations: 2x1 + + 7X6 4x1 5X4 20x4 19x4 2x4 6x5 3X5 7x5 15X1 3x2 4x3 + + 4x1 + 8x2 + X3 + 20x4 + 3x5 + 10x6 = 5 8x2 X3 10x6 15x1 + X2 + 5x3 + 19x4 + 7x5 + 3x6 = 12 3x6 22x1 + 13x2 + 12x3 + 2x4 + X5 + 3X6 = 9 22x1 X5 3X6 13x1 + 10x2 + 3x3 + 7x4 + 10x5 + X6 = 14 X1 + 2x2 + 3x3 + 15x4 + 12x5 + X6 = 20 X2 5X3 12x3 13x2 Question 2 Read in the average global sea level data provided by the EPA. https://www.epa.gov/sites/production/files/2016-08/sea-level_fig-1.csv 1. Plot the time (x-axis) vs. global sea level (with adjusted, lower and upper bounds) (y- axis). 2. Create a trend line using linear, quadratic, and cubic functions. 3. Save the quadratic data as GlobalSealevelQuad.mat