Answer
The relationship between voltage and current is $V=R\times I$. If resistance is constant, then the plot is a straight line. The slope is the resistance. Thus, the shallower slope implies lower resistance.
Work Step by Step
The relationship between voltage and current is $V=R\times I$. If resistance is constant, then the plot is a straight line. The slope is the resistance. Thus, the shallower slope implies lower resistance.