Graph the following data and calculate the slope.

What quantity is the slope of this graph?

Normal Force(N)
Frictional Force(N)
0
0
2.0
0.6
6.0
1.8
9.0
2.7
10.0
3.0

You need to arrange the data in two columns somehow. It looks to me like the friction force is 3/10 of the normal force. That would mean that the coefficient of friction (and the slope) is 0.3, The fit is a perfect straight line. I don't know what you mean by the "quality"

You will have to draw your own graph. Make the normal force the x axis.

To graph the given data, you need to plot the Normal Force (N) on the x-axis and the Frictional Force (N) on the y-axis.

The data points can be plotted as follows:

(0, 0)
(2.0, 0.6)
(6.0, 1.8)
(9.0, 2.7)
(10.0, 3.0)

Once you have plotted the data points, you can draw a line of best fit or a straight line that represents the trend of the data.

To calculate the slope of this graph, you need to select two points on the line and use the slope formula:

slope = (change in y)/(change in x)

Let's select the points (0, 0) and (10.0, 3.0) to calculate the slope:

change in y = 3.0 - 0 = 3.0
change in x = 10.0 - 0 = 10.0

slope = (3.0)/(10.0) = 0.3

Therefore, the slope of this graph is 0.3.

In terms of quantities, the slope of this graph represents the rate of change of the Frictional Force (N) with respect to the Normal Force (N).