plot - 1.5 degrees, - 4 degrees, and 2 degrees celsius on the number line.

Explanation:

Step1: Locate -4 on the number line

-4 is at the mark labeled -4.

Step2: Locate -1.5 on the number line

-1.5 is halfway between -2 and -1.

Step3: Locate 2 on the number line

2 is at the mark labeled 2.

Answer:

Plot a point at -4 (the mark labeled -4), a point halfway between -2 and -1 (for -1.5), and a point at the mark labeled 2.