Which compound inequality could this graph be the solution of?
![Which compound inequality could this graph be the solution of class=](https://us-static.z-dn.net/files/dc8/255c19438e3f583a5677cc2959b51971.png)
Answer: A
Step-by-step explanation: As the balls on the numbers 2 and 4 are completly full, we can rule out the ones that do not have the equal sign. The answer must have this ≤ or this ≥. This way it is not c.
solving the 2x + 3 ≥ 11
2x + 3 ≥ 11
2x ≥ 11 - 3
2x ≥ 8
x ≥ 4 (ok)
solving 4x - 7 ≤ 1
4x - 7 ≤ 1
4x ≤ 1 + 7
4x ≤ 8
x ≤ 8/4
x ≤ 2 (ok)