An investment is worth 3518 in 1995 By 2000 it has grown to

An investment is worth $3518 in 1995. By 2000 it has grown to $5553. Let y be the value of the investment in the year x, where x = 0 represents 1995. Write a linear equation that models the value of the investment in the year x. A. y = -407x + 7588

B. y = 1/407 x + 3518

C. y = -407x + 3518

D. y = 407x + 3518

Solution

linear equation: y=mx+b

at x= 0 y=3518==========> b=3518

m = (5553 - 3518)/(5 - 0) = 407

b=3518

y=mx+b

so, y= 407x+3518