question\nevaluate the function graphically.\nfind f(-4)

question\nevaluate the function graphically.\nfind f(-4)
Answer
Explanation:
Step1: Locate x - value on x - axis
Locate $x=-4$ on the x - axis.
Step2: Find corresponding y - value
Move vertically from $x = - 4$ until reaching the graph of the function. The open - circle at $(-4,6)$ is not part of the function, and the closed - circle at $(-4,5)$ is part of the function. So the y - value corresponding to $x=-4$ is 5.
Answer:
5