Must use the conditions of continuity to justify and use graph as your main justification

Let f be the piecewise-defined function 16x2 +6 if x > l f(a) = 3 1 + 258 if x = 1 131 8 20 2 if al Find the value(s) of I that makes f continuous at a - 1. If there are no values of I that make f continuous, answer "DNE." If there are more than one answer, give your answer as a comma-separated list (i.e. 2, 3)