Which point should have an open circle in the graph of the piecewise function
If a point on the graph should have an open circle, it typically indicates that the point is not included in the function and there is a discontinuity at that point.
In a piecewise function, the open circle would typically be placed at the endpoint of an interval where the function is not defined or where there is a jump in the function.
For example, if the piecewise function has the following intervals:
- f(x) = x^2 for x < 0
- f(x) = 2x - 1 for x ≥ 0
The open circle would be placed at the point where x = 0, indicating the discontinuity between the two functions.