Problema Solution
The average number of people attending a local church on Sundays dropped from 265 in October 2008 to 169 in October 2009. Find the rate of change in Attendance at church
Answer provided by our tutors
let x1 be number of peoples in october 2008 = 265 =x1
let x2 be number of peoples in october 2009= 169 =x2
change = x1-x2= 96
time period = 1 year = 2009 -2008 = t2-t1= 1 year
rate of change = x1-x2/t2-t1= 96 peopels per year