$$\text { Use a graph to find a number } \delta \text { such that } | \sqrt { 4 x + 1 } - 3 | < 0.1 \text { whenever } | x - 2 | < \delta \text {. }$$

$$\text { Use a graph to find a number } \delta \text { such that } | \sqrt { 4 x + 1 } - 3 | < 0.1 \text { whenever } | x - 2 | < \delta \text {. }$$