Find the difference in slopes. Can anyone help me with this? I need it, its a grade for my mah class.

Answer:
Slope of the graphed line, using 2 points (-1, 3) and (0, 0):
Slope of the line containing the points (-6, 2) and (-9, 5):
The difference in number between the slopes:
The difference in slopes:
Answer:
i like to know this answer
List and appraise a piece of music base on timbre