Heeel.. below you can see an equation for a piecewise function and joanne's attempt at graphing that piecewise function. choose the statement that best represents joanne's work. a. the piecewise function is graphed completely correctly. b. the point (2, 4) should be an open circle. c. the slope of the first equation is not graphed the right way. d. the two equations should not have a gap between them.