In the CD savings situation we were looking at growth, now let's investigate a situation where the value of an item, in this case a car, depreciates or loses value over time. Have you ever heard someone say "the minute you drive the car off the lot half its value is gone"? While this is a little extreme, it is true that a car does not maintain its value very well. On average a new car loses 15%-20% of its value each year for at least the first few years that you own it. Situation: You bought a new car for $43000. Assume the cars value depreciates by 20% each year. Complete the following table. Age of the Car in years Calculation Value 0 N/A 43000 1 43000*0.8 2 3 4 ... N/A N/A 10 Use the table to find a pattern and develop a formula to model V = value of the car, after n years. Is the situation linear? Create a graph showing at least the first 10 years. If you make it on paper, use graph paper. Scale carefully and proper labels.
Unitary Method
The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.
Speed, Time, and Distance
Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.
Profit and Loss
The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.
Units and Measurements
Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.
In the CD savings situation we were looking at growth, now let's investigate a situation where the value of an item, in this case a car, depreciates or loses value over time. Have you ever heard someone say "the minute you drive the car off the lot half its value is gone"? While this is a little extreme, it is true that a car does not maintain its value very well. On average a new car loses 15%-20% of its value each year for at least the first few years that you own it.
Situation: You bought a new car for $43000. Assume the cars value depreciates by 20% each year.
Complete the following table.
| Age of the Car in years | Calculation | Value |
| 0 | N/A | 43000 |
| 1 | 43000*0.8 | |
| 2 | ||
| 3 | ||
| 4 | ||
| ... | N/A | N/A |
| 10 |
Use the table to find a pattern and develop a formula to model V = value of the car, after n years.
Is the situation linear?
Create a graph showing at least the first 10 years. If you make it on paper, use graph paper. Scale carefully and proper labels.
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