It is the constant of proportionality or the conversion factor.
If two variables are directly proportional to one another then the constant of proportionality is the ratio of their values. If they are in inverse proportion then the constant of proportionality is the product of their values.
Direct proportionality. Their graph would be a straight line through the origin, with the slope equal to the ratio.
Graphical: If two variables are proportional, the graph of one of the variables against the other is a straight line through the origin.Algebraic: If the ratio of the two variables is a constant.
A proportional relationship exists when two variables are related by a constant ratio. In the expression y-2.5x, there is no constant multiplier connecting y and x, indicating a non-proportional relationship. If the relationship were proportional, the expression would be in the form y = kx, where k is a constant.
It is the constant of proportionality.
It is the constant of proportionality or the conversion factor.
Two variables related in such a way that their values always have a constant ratio directly vary.
Direct Proportion
The constant of proportionality between two variables is the ratio of one to the other.
Two variables whose ratio is constant have a linear relationship. The first variable is the second multiplied by the constant.
It is a direct proportion.
If two variables are in direct relationship then the ratio of the two variables is known as the constant of proportion between them. In algebraic form, if X and Y are the two variables, then direct proportionality implies that Y = cX and c is the constant of proportionality.
dependent
If you take any pair of variables in the table, their ratio is a constant.
If two variables are directly proportional to one another then the constant of proportionality is the ratio of their values. If they are in inverse proportion then the constant of proportionality is the product of their values.
For a direct variation equation the constant MUST be 0. Then the ratio of a pair of values of the two variables is the slope.