Question

the graph shows the electrical resistance of a wire as a function of its length. determine the slope of the line and indicate the units on the slope. resistance (milliohm) length (m) slope: units: (tap to toggle thru options.)

Explanation:

Step1: Select two points

Let's choose the points (0, 0) and (6, 90).

Step2: Apply slope formula

The slope formula is $m=\frac{y_2 - y_1}{x_2 - x_1}$. Here, $x_1 = 0,y_1 = 0,x_2=6,y_2 = 90$. So $m=\frac{90 - 0}{6 - 0}=\frac{90}{6}=15$.

Answer:

Slope: 15
Units: milliOhm/m