Barrons AP Calculus

The table gives us the numerical solution of using Euler’s method. Figure
N9−6a shows the graphical solution, which agrees with the data from the table,
for x increasing from 1 to 3 by four steps with ∆x equal to 0.5 Figure N9−6b
shows this Euler graph and the particular solution of passing through the
point (1, 0), which is y = 3 ln x.