how do you find the rate of change and explain what it means for thhe situation?

Question

heres the table:
Time(hours) Distance(miles)
4 260
6 390
8 520
10 650

Answer 1

Before the hour table started it may have traveled 260 miles in four hours. It is hard to say because no data is given for zero hours. However assuming it was moving from 0 distance to 260 miles in those initial four hours it went 260 miles / 4 hours or 65 miles per hour on the average before he first point in your table.
In the first two hours (from 4 to 6) it went 130 miles or 65 miles per hour
In the second two hours (from 6 to 8) it went 130 miles or 65 miles per hour
In the third two hours (from 8 to 10) it went 130 miles or 65 miles per hour

So the rate of change of distance with time (the speed) is 65 miles per hour over every two hour time interval measured.