Which graph represents the piecewise-defined function?

Graph at the bottom right.

Step-by-step explanation:

From the given piecewise function,

1). y = -2  if x ≤ 1

An arrow representing this function will be parallel to x-axis with a dark circle at x = 1.

2). y = 1  if 1 < x ≤ 2

A straight line representing this function will be parallel to x-axis with a dark circle at x = 2 and a hollow circle at x = 1.

3). y = 3  if x > 2

An arrow representing the function will be parallel to the x-axis having one end as a hollow circle at x = 2.

Therefore, Graph at the bottom right will be the answer.

noncoplanar points are points that do not lie on the same line.

the answer should be a. snail