an expensive machine is assumed to lose value or depreciate linearly. when the machine was 3 years old it was worth $35,000. when it was 7 years old it was worth $25,000. we want to create the linear equation that relates value of the machine to its age.

a)find the linear equation in the form c=mx+b where x is the age and y is the value of the machine

b) the value of the machine after 1 year is____

c)the machine is _____ years old when its value is $10,000.