Yes, considering that the ball cannot have two different heights at the same exact time.
Sorry I’m only answering this so I can ask
Answer:
(-2,21)
Step-by-step explanation:
2 days ago, Paulo's commute time was halfway between his commute times 8 and 9 days ago.
8 days ago means that x-coordinate -8 represents this day. Count 8 units to the left and find that when x = -8, y = 24 minutes.
9 days ago means that x-coordinate -9 represents this day. Count 9 units to the left and find that when x = -9, y = 18 minutes.
Find halfway commute time between points (-8,24) and (-9,18):

then coordinates that Paulo should graph are
(-2, 21)
(-2 means 2 days ago, 21 is the halfway)
I think the number of ways is 671?
If you have a slope of -4 then it would be -4/1 because rise/run. If it were -4/-1 then the slope would be 4.