To solve for xx, we must first isolate the variable on one side:
-8 ≥ -8x
Now, we must divide both sides by -8 to get x by itself. It is important to remember that when we divide both sides of an inequality by a negative number, we must flip the inequality sign:
-8 / -8 ≤ -8x / -8
Simplified, it becomes:
1 ≤ x
This shows that xx can take any value greater than or equal to 1.
Now let's graph this on a number line:
```
<----|----|----|----|----|----|----|----|----
0 1 2 3 4 5 6 7
```
We will use a closed circle (or bracket) on 1 to indicate that 1 is included in the solution, and an arrow pointing to the right to show that all numbers greater than 1 are part of the solution set:
```
<----|====|====|====|====|====|====|====|==== (...)
0 1 2 3 4 5 6 7
```
The "===" indicates the portion of the number line where x is a solution, starting from 1 and going to the right indefinitely.
Solve for xx and graph the solution on the number line below.
-8≥-8x
1 answer