Final answer:
Triangle MNP is not in line y = -5.
Step-by-step explanation:
To determine if triangle MNP is in line y = -5, we need to check if all three vertices have a y-coordinate of -5.
- For vertex M(-6,-8), the y-coordinate is not -5, so it is not in the line.
- For vertex N(-1,-6), the y-coordinate is not -5, so it is not in the line.
- For vertex P(-2,-8), the y-coordinate is not -5, so it is not in the line.
Therefore, triangle MNP is not in line y = -5.