in 2000 one small town had 250 city employees. in 2005 it had 325 employees.
A. use the coordinates (0,250) and (5,325) to find the equation in point slope form that represents the average rate of increase for the number of employees.
B. find the number of employees in 2010
(0,250), (5,325).
A. m = (325-250) / (5-0) = 75 / 5 = 15.
(0,250, (x,y).
m = (y-250) / (x-0) = 15/1
Cross multiply:
(y-250) = 15(x-0).
B. (y-250) = 15(10-0)
y-250 = 150
Y = 150 + 250 = 400 Employees.