In parts (a) and (b) below, copy the vertical number lines and use them to show the solution to the problems. Homework Help ✎
5 − 2
2 + 1
Show how to find the answer to −3 + 4 − 1 on a number line.
See parts (a) and (b) for help.
Rachel said that −4 −3 ends up being positive because two negatives always give a positive. Draw the problem on a number line, and then explain whether you agree or disagree with Rachel.
−1 + (−2) = −3
−7 + (−4) = −11
Do two negatives always make a positive?