Q: Draw the graph of the function:

f(x) = x - [x] for all x belongs to [-3, 3]

Note: i) Please explain the all steps with Graph
ii) Its a Saw-tooth Wave function or Fractional Part Function

I suggest you plot a few points such as x = -3, -2, -1, 0, 1, 2, and 3 and connect the dots. What do you get?