1. The problem statement, all variables and given/known data using newtons method with an initial estimate of x0=2, find the point where the graph f(x)=x3-x-2 crosses the x-axis 2. Relevant equations xi+1 = xi - f(xi)/f'(xi) 3. The attempt at a solution Using a function plotter, I know the answer should be around 1.52138... But how am i supposed to know how many repetitions of newton's method is required to get x where y=0 (i.e the x-axis).