Final answer:
To graph -3.6 and its opposite, draw a horizontal line, place a point at -3.6 to the left of 0, and place another point at 3.6 to the right of 0, ensuring they are equidistant from 0.
Step-by-step explanation:
To graph the number -3.6 and its opposite on a number line, first draw a horizontal line and mark increments to represent integers and fractions or decimals. Place a point at the position representing -3.6, which will be to the left of 0 because it is negative. The opposite of -3.6 is 3.6, so place another point on the number line at the position representing 3.6, which will be to the right of 0. Make sure that both points are equidistant from 0, as they are opposites.