please solve in matlab and show the code and how its writen in matlab please

A sine wave function g(t) is linearly increasing in frequency from 0 Hz at t=0s to 4 Hz at t=8s. The instantaneous frequency of the function at time tis 8Hz f(t) = t. 10s The phase of a sine wave is 2 it times the integrated frequency. Therefore g(t) sin ( 2* [se) de) = sin(2) Plot the graph of this function. Add to the same figure (in a different colour) a graph of the same function sampled at 4 Hz using the stem command