A mobile phone is bought for ₹10000. Its value decreases by ₹800 every year. Make a table of values for t varying from 0 to 8 years and show how the value of the phone, v, depreciates with time.

Concept Note

The linear decay is given by the formula
\(v = v_{0} + (r × t)\),
where
\(v_0 = \) initial value
\(r = \) constant annual decrease
\(t = \) time in years
Every year the phone loses the same value, making it easy to calculate future values.