1) (a) Find the limit, if it exists: lim x 2 - 16 X ->- 4 X + 4 (10pts) (b) Use the graph to estimate the limit: 5( f(x ) (i) lim f(x) = X-> 1 - (ii) lim f(x) = X - 1+ (ili) lim f(x)= X- 1 -5 -3 3 4 5 x (iv ) f ( 1 ) = -2 -3 (v) Is the function shown in above graph part(b) continuous at x = 1 ? Explain why or why not