How do I find the slope of a straight line for v2 vs FcSolut

Solution

If u plot the value V² vs F_c on graph then take V² on X axis and F_c on Y axis.

Lets take the first value of V² vs F_c

ie V² =3.08 and F_c = 5.88

Now on graph, on x axis mark the point at 3.08 and on y axis mark the point at 5.88, then join the points to make a straight line.

Now Slope = (Change in Y axis value) / (Change in X axis value)

Since u are taking F_c on Y axis and V² on X axis

Slope for first set = F_c/V²

= 5.88/3.08

Slope = 1.909