the graph shows the value of a car at different years after Joanna purchased it.
Which answer is the best estimate for the average rate of change between Year 9 and Year 14?
https://prnt.sc/ps2i7l
In year 9 the value is ≈ $1400
In year 14 the value is ≈ $750
The avg rate of change = [ 1400 - 750 ] / [ 9 - 14 ] = 650 / -5 = -130 dollars per year
