Question

use the graph of the function to complete the table.
input output
2
3
4 1

Explanation:

Step1: Find y when x=2

Locate $x=2$ on the x-axis, move up/down to the graph: the point is $(2,0)$. So output is $0$.

Step2: Find y when x=3

Locate $x=3$ on the x-axis, move up/down to the graph: the point is $(3,-2)$. So output is $-2$.

Answer:

input	output
3	-2
4	1