1: You are looking to find the mps increase over a second
2: 45 m/s from 0 m/s in 10 secs that is 4.5 m/s per second
3: The acceleration is 4.5m/s
Slope intercept form= y=mx+b.
y=9x-9
22x-1/4x= 1
21.75x=1
x=0.046
Im not sure tho:) but probably its correct
The first one I think because a linear function is always going to have a constant rate of change in one direction going straight up
