Question

find the output, y, when the input, x, is -1.
y =
graph of a piecewise function with x-axis and y-axis, grid lines, and the function plotted

Explanation:

Step1: Locate x = -1 on x - axis

Find the position of \( x=-1 \) on the horizontal (x - axis) of the graph.

Step2: Find corresponding y - value

From \( x = - 1\), move vertically until intersecting the graph. Observe the y - coordinate at that intersection. Looking at the graph, when \( x=-1 \), the corresponding \( y \) - value is 2 (by visually inspecting the graph, the point at \( x = - 1\) lies on the part of the graph where \( y = 2\)).

Answer:

2