I need a matlab program to plot the following problem. Mine plots but gives errors

If an object is heated, the temperature of the body will increase. The energy (Q) associated with a change in temperature (Delta T) is a function of the mass of the object (m) and the specific heat (C p). In an experiment, heat is applied to the end of an object, and the temperature change at the other end of the object is recorded. This leads to the theoretical relationship shown. An unknown material is tested in the lab, yielding the following results: Delta T = Q/mC_p