Final answer:
To find the resistance from a current-voltage graph with the equation y = 0.0031 * x, you use the reciprocal of the slope, which gives a resistance of approximately 323.23 ohms.
Step-by-step explanation:
To determine the resistance from the equation of a current (I) versus voltage (V) graph, where the equation is given by y = 0.0031 * x, we use Ohm's law expressed as V = IR. The slope of the line on a graph of current (I) as a function of voltage (V) represents the resistance (R). Since the slope is given by the constant 0.0031 in the equation, the resistance is 1 / 0.0031 ohms or approximately 323.23 ohms.