1. Numerically determine a delta corresponding to the given epsilion.
lim as x approaches 4 (2x-1=7, epsilion=0.1)
delta<(0.1/2)=0.05
2. Find a value for M>0 corresponding to to epsilion=0.1 for the infinite limit.
lim as x approaches infinity (1/x^2)=0
x<sqrt(1/M)