The value V of a digital camera t years after it was bought is represented by the function V(t)=875−50t

Question

1. Determine the value of  and explain what the solution means to this problem.
2. Determine the value of  when  and explain what this situation represents.
3. What was the original cost of the digital camera?
4. Determine the value of  and explain what the solution means to this problem.The camera is valued at $______   four years after it was purchased.

Answer 1

V = 875 -50t

the camera original cost $875. V=875-50(0) = 875-0 = 875

after 4 years the camera cost V=875-50(40) = 875-200 = $675

If you graph the equation with V on the vertical axis and t on the horizontal axis, it's a straight line with slope =-50 and V intercept = 875

each year the camera's value decreases by $50