Problema Solution
The value y of a 1996 Mustang depends on the the age x. If the Mustang was bought
for $35,000 in 1996, and the value in 1999 was $26,000. Suppose y is a linear function of x,
that is y = mx + b.
Answer provided by our tutors
the Mustang was bought for $35,000 in 1996
in 1996 the mustang was x=0 years old and y = 35000 thus
35000 = m*0 + b
b = 35000
the value in 1999 was $26,000
in 1991 the mustang was x = 1999 - 1996 = 3 years old and y = 26000 thus
26000 = m*3 + 35000
m = (26000 - 35000)/3
m = - 3000
the linear function that is the value is calculated by
y = - 3000x + 35000