Problema Solution
A computer company uses the linear model y = -21x + 13,082 to predict the decline in sales of a computer after it has been on the market more than one year. If x is the number of months after the first year and y is the number of computers sold during that month, how many computers will be sold 11 months after the first year?
Answer provided by our tutors
y = -21x + 13,082
x = 11 (x is the number of months after the first year)
we plug x = 11 into the equation y = -21x + 13,082 and get:
y = (-21)11 + 13,082
y = 12,851 computers
11 months after the first year there will be 12,851 computers sold.