Section 1.7 As a follow-up to question 6(b), I decided to graph 4 functions on the xy-plane. See attachment. Graph the following functions: f(x) = sqrt{x - 2}. f(x) = -sqrt{x - 2}. f(x) = sqrt{x + 2}. f(x) = -sqrt{x + 2}. [ATTACH=full]179[/ATTACH]