For ohmic resistors, the ratio of voltage to current is constant.
The battery was connected to the resistor then the wire extended to the DMM. At the DMM, the wire from the anode was connected to the DMM and then the other one from the cathode was also connected to the DMM. After the resistance was varied and a set of values for voltage (V) and current (I).
The two equations from section 1-2 and 1-3 suggest that R=V/I. This may have been because the DMM was faulty. The voltage for all the resistors in section 2-4 was 7.9V because they were all in