A 15-foot ladder is leaning against a building so that the top of the ladder is at a height of 12 feet. building

12

Step-by-step explanation:

The answer is c. you just have to look at the red line. you can tell that it is solid so you know that y has to also be equal to the value. Then you can see that it is shaded above the line so that means y is greater than the value. Then since the line is on -1 the answer has to be c, y is greater than or equal to negative 1.