Answer:
The input value is -2
Step-by-step explanation:
Input values are x-values plotted on the horizontal axis (x-axis) while the output values are plotted on the vertical axis (y-axis).
What we are simply asked to do is to determine what the value of x is on the x-axis, that corresponds to the y-value of 2 on the y-axis.
Thus, when y = 2 on the x-axis, x = -2 on the x-axis.
The input value of -2, corresponds to the output value of 2.
