Explain the concept of direct variation.
Answers
Answer:
mathematical relationship between two variables that can be expressed by an equation in which one variable is equal to a constant times the other. 2 : an equation or function expressing direct variation — compare inverse variation.
Step-by-step explanation:
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There are so many quantities that can increase at a consistent rate. If you set your car's cruise control and start driving, you will travel a consistent number of miles per hour, every hour. If you save the same amount of money every week, you will increase your savings by a consistent amount. If we graph these scenarios we get a straight line, and so they are called linear equations. However, there are different types of linear equations. The one we will investigate in this lesson is called direct variation.