20. At a relative maximum of a curve y(x), the slope dy/dx is zero. Use the following data to estimate the values of x and y that correspond to a max- imum point. 5 7 0 1 2 3 4 6 7 8 9 10 0 2 5 7 9 10 8 6 4 5 Needs to be done in matlab! Search e 3:20