Can you please answer my math in action questions? And please show all your work

car to lose all value? 4. According to the straight-line depreciation equation y - -1275x + 10,200, how many years does it take for the 5. A motorcycle is originally worth $12,599 and loses $450 in value each year. A) What is the straight-line depreciation equation? B) What is the value of the motorcycle in 4 years? 6. A new car costs $28,000. The car takes 14 years to fully depreciate. A) What is the slope for the straight line depreciation equation? B) Write the straight line depreciation equation for this given situation. C) When does the car have a value of $20,000? D) What is the value of the car after 7 years? 7. A car sold for $22,000. It depreciates linearly at a value of $2750 per year. When Ralf purchased the car Raif put $5000 and will make payments of $350 per month. After how many years will the car value equal the amount Rae paid to date for the car (Use Desmos to graph)? 8. Groff's Honda Civis is originally worth $25,900. it takes 10 years for this car to totally depreciate. Groff makes payments of $480 per month and put a down payment of $2000. Write the 2 expense equations and find the intersection point using Desmos