What have you notice as the value and x increases to the corresponding values of y?

Write the direct variation equation. Substitute the given x value. Example 2: Given that y varies directly as x , find the constant of variation if y=24 and x=3 .

How much does y change when x increases by 1?

When the value of x increase by 1, the value of y always increases by 10.

What equation describe the relation between X and Y?

A linear equation in two variables can be described as a linear relationship between x and y, that is, two variables in which the value of one of them (usually y) depends on the value of the other one (usually x). In this case, x is the independent variable, and y depends on it, so y is called the dependent variable.

What happens to the values of y when x is doubled or tripled?

y = c 1/x. Intuitively this means that if x doubles then y is reduced by 1/2 and if x triples then y is reduced by 1/3. For example if you are going on a 200 mile drive then the time it takes, y, is inversely proportional to your average speed, x.

How does y increase as x increases?

If a line has a positive slope (i.e. m > 0), then y always increases when x increases and y always decreases when x decreases. Thus, the graph of the line starts at the bottom left and goes towards the top right.

What is it called when x increases y decreases?

What Is Negative Correlation? Negative correlation is a relationship between two variables in which one variable increases as the other decreases, and vice versa. A perfect negative correlation means the relationship that exists between two variables is exactly opposite all of the time.

What happens to the value of Y if the value of x doubles?

So, when x is doubled, y is quadrupled.

What happens to y varies inversely as x and x is doubled?

Is there a proportional relationship between X and Y?

Understand that a relationship between two variables, x and y, is proportional if it can be expressed in the form y/x=k or y=kx.

How does y change as x increases?

When the value of x increases, the value of y remains constant. That is, there is no change in y value and the graph is a horizontal line .