In problems 1-4, state each answer in the form "If x is within units of . .." 1. lim 2x + 1 = 7. What values of x guarantee that f(x) = 2x + 1 is (e) within 1 unit of 7? x 3 (b) within 0.6 units of 7? (c) within 0.04 units of 7? (d) within = units of 7? 2. lim 3x + 2 = 5. What values of x guarantee that f(x) = 3x + 2 is within 1 unit of S ? "1 (b) within 0.6 units of S? (c) within 0.09 units of S? (d) within