For the direct variation equation y=38x , what is the constant of proportionality?
The constant of proportionality in the direct variation equation y = 38x is 38.
The constant of proportionality in a direct variation equation represents the relationship between the two variables. In the equation y = 38x, the constant of proportionality is the number 38. It tells us that for every unit increase in x, there is a corresponding increase of 38 units in y.
To find the constant of proportionality in a direct variation equation, you need to compare the two variables (y and x) and determine how they are related. In this case, the equation tells us that y is directly proportional to x, meaning that the ratio of y to x is always constant, and that constant is 38.