I want code in matlab

I need 6 and 7 both in matlab

7. Suppose that y = y(x) approximates the table in Problem 6. Find the derivative y'(x) and the extrema of the function y'(x) (the problem can be solved in case your aim is to get grade 10"). 6. Approximate the given function using a proper approximating model: 0.2 0.9 1.6 2.3 3.0 3.7 4.4 5.1 x, y, 2.07 1.29 -0.48 -2.52 -4.18 -5.11 -5.44 -5.66 7. Suppose that y = y(x) approximates the table in Problem 6. Find the derivative y'(x) and the extrema of the function y'(x) (the problem can be solved in case your aim is to get grade 10")