Determine the answer to (−3) + (−5) and explain the steps using a number line. (5 points)

-8

Step-by-step explanation: In this problem we're asked to add -3 + -5 so let's use a number line. A negative represents a move the left on the number line and a positive represents a move to the right on the number line.

So starting at 0, -3 tells us to move 3 units to the left along the number line. From there, -5 tells us to move 5 units further to left so you can see from the picture that we end up at -8.

This means that -3 + -5 is -8.