1. [5 points each] For algebraic functions, we can calculate limits using direct substitution so, for example Iim 4X+5 :3 x>1 For each > 0, find (algebraically or graphically) the largest 6 >0 guaranteed by the definition of the limit. Round your answers to two significant digits. a) 5:01, 6: b) 8:0.01, 5: C) 5' : 0.001, 6 : d) Use your results to find a formula for 5 as a function of an arbitrary a