In this part of the lab, we will fit a line to the data and then plot the line on a scatterplot. This is best done using the plot function from Pyplot. The general syntax for this function is plt.plot(x, y, "o"). Here, x is your x variable, and y is your y variable (in this case, columns from the data frame). The "o" tells Pyplot to plot your data points as circles without connecting them. Leaving it out causes a mess. (Try it!)