Question

All points of the step function f(x) are graphed.

Answer 1

Answer:

  (a)  {x| –4 < x ≤ 4}

Step-by-step explanation:

The domain is the horizontal extent of the graph.

Your problem statement tells you the left end is an open circle at x=-4, and the right end is a closed circle at x=4. The domain is ...

  -4 < x ≤ 4