x is between -3 and 3. [x] denotes the greatest integer not greater than x.

1. Sketch the graph, find the range.

2. Is F(x) a periodic function of x?

3. Does x = F-1(y) exist?

1. Sketch the graph, find the range.

2. Is F(x) a periodic function of x?

3. Does x = F-1(y) exist?