SOLUTION: y varies directly with x and has a constant rate of change of 7. When the value of y is 12, then the value of x would be?

Question 388262: y varies directly with x and has a constant rate of change of 7.
When the value of y is 12, then the value of x would be?
Answer by MathLover1(20849) (Show Source): You can put this solution on YOUR website!

A change in one quantity with respect to another quantity is called a

.
Any rate of change can be described in terms of slope, or .
A special type of equation that describes a rate of change is a
linear equation in the form of , where is equal to , and is called .
In direct variation we say that varies with or varies directly as .
In the direct variation equation, , is the
of variation.
The constant of variation in a direct variation equation has the as the of the graph.
For example:
is a direct variation because it is in the form of .
The constant of variation of is .
The slope of the linear graph of is . All direct variation graphs pass through the .

So, in your case we have:. The constant of variation it is .
If the value of is , then the value of would be or .

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