Section 1.7 As a follow-up to question 6(a), I decided to graph 4 functions on the xy-plane. See attachment. Graph the following functions: f(x) = sqrt{x} - 3. f(x) = sqrt{x} + 3. f(x) = -sqrt{x} - 3. f(x) = -sqrt{x} + 3. [ATTACH=full]178[/ATTACH]