## What equation is an example of direct variation?

For example, if y varies directly as x, and y = 6 when x = 2, the constant of variation is k = = 3. Thus, the equation describing this direct variation is y = 3x.

**What is an example of a indirect variation?**

There are many situations in our daily lives that involve inverse variation (indirect variation). For example, the number of days required to build a bridge is varies inversely to the number of workers. As the number of workers increases, the number of days required to build would decrease.

### What are 3 things that describe direct variation?

(Some textbooks describe direct variation by saying ” y varies directly as x “, ” y varies proportionally as x “, or ” y is directly proportional to x . “) This means that as x increases, y increases and as x decreases, y decreases—and that the ratio between them always stays the same.

**What is a real life example of direct variation and inverse variation?**

It is an example of direct variation. If family has less members, more saving (provided that the family has the same amount of income). More members, less saving ( income is still the same). It is an inverse variation.

## Which of the following is an example of direct variation?

Some examples of direct variation problems in real life: The number of hours you work and the amount of your paycheck. The amount of weight on a spring and the distance the spring will stretch. The speed of a car and the distance traveled in a certain amount of time.

**What are examples of variations?**

For example, humans have different coloured eyes, and dogs have different length tails. This means that no two members of a species are identical. The differences between the individuals in a species is called variation.

### What is a direct variation?

Definition of direct variation 1 : 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.

**What are direct and indirect variations?**

In direct variation, as one number increases, so does the other. This is also called direct proportion: they’re the same thing. In inverse variation, it’s exactly the opposite: as one number increases, the other decreases.

## Is xy 7 a direct variation?

“The variables x=2 and y=7 vary directly.”