please do with matlab and share coding and screenshot.

i Write a MATLAB code to verify the Rolle's theorem for the function f(x,y) = x2 - 2x - 3 on (-1,3] and plot the function with axes properties. [10m] Suppose the Celsius of the temperature at the point p on the sphere x2 + y2 + z2 = 1 is f(x, y, z) = 100ryz. Find the lowest temperature on the sphere by using Lagrange method of multiplies (10m)