A piece-wise function represents functions of various intervals.
The graph of the piece-wise function is graph (b)
The piece-wise function is given as:
[tex]f(x) = \left[\begin{array}{ccc}x + 1&x \le -5 \\-3& -5 <x<6\\\frac 13 x&x \ge 6\end{array}\right[/tex]
To plot the graph, we simply analyze each equation
[tex]f(x) = x + 1, \ x \le-5[/tex]
[tex]x \le-5[/tex] means that:
- The maximum value of x for this function is -5
- The above statement means that, the graph of f(x) = x + 1 would use a closed circle
[tex]f(x) = -3,\ -5 < x < 6[/tex]
[tex]-5 < x < 6[/tex] means that
- -5 and -6 are not inclusive of the value of x
- The above statement means that the graph of f(x) in this interval would be open circle
[tex]f(x) = \frac 13x,\ x \ge 6[/tex]
[tex]x \ge 6[/tex] means that
- 6 is inclusive of the value of x
- The above statement means that the graph of f(x) in this interval would be a close circle
The graph that satisfies the above conditions is: graph (b)
Read more about graphs of piece-wise function at:
https://brainly.com/question/12650500