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)