Suppose G $\mathbf { R } \rightarrow \mathbf { R }$

Essay

Suppose g : $\mathbf { R } \rightarrow \mathbf { R }$ where $g ( x ) = \left\lfloor \frac { x - 1 } { 2 } \right\rfloor .$
(a) Draw the graph of g .
(b) Is g 1-1?
(c) Is g onto $\mathbf { R }$ ?