How do you show -9 - (-2) on a number line
To show -9 - (-2) on a number line, you can follow these steps:
1. Start by locating -9 on the number line. This means you move 9 units to the left from zero.
-10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0
2. Next, we need to subtract -2. In order to do that, we need to find where -2 is on the number line. Since subtracting a negative is the same as adding a positive, we change it to +2.
-10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2
3. Finally, we need to subtract +2, which means moving 2 more units to the left from -9.
-10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4
So, -9 - (-2) = -7, and it is represented on the number line as the point -7.