Solve the problem.A piece of farm machinery costs and depreciates at the rate of per year.a) If y represents the the value of the machinery after x years, write an equation for the value of the machinery.b) Graph the equation.c) What is the relationship between the slope of the line and the per-year depreciation?

A. a) y = 510x - 6000
b)

c) The magnitude of the slope of the line is
the same as the per-year depreciation.

B. a) y = 510x + 6000
b)

c) The magnitude of the slope of the line is
the same as the per-year depreciation.

C. a) 6000 = y - 510x
b)

c) The magnitude of the slope of the line is
the same as the per-year depreciation.

D. a) y = 6000 - 510x
b)

c) The magnitude of the slope of the line is
the same as the per-year depreciation.