y = kx: 10 = 37k so k = 10/37 and y = 10x/37
The equation is xy = 22.5
Suppose the two variables are denoted by X and Y. If Y is a constant multiple of X, that is Y = c*X, then the variation is direct. If the value of X*Y is a constant, that is Y = c/X, then the variation in inverse.
40
y = -5
find the constant of variation and the slope of the given line from the graph of y=2.5x
2y - 3x = 0Put into Slope-Intercept form:2y = 3xDivide by 2:y = 3/2 * x = 1.5x3/2, or 1.5 is the constant of variation.
y = kx: 10 = 37k so k = 10/37 and y = 10x/37
What is y? Fx varies with x, but y could be anything.
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.
The equation is xy = 22.5
Y=kx+m Y=-5x+m K=-5
If y and x are related inversely, then the equation for y can be said to be:y = k/xTo find the constant k, substitute 12 for y and 6 for x (a pair of values that are known to satisfy the equation).y = k/x12 = k/612 X 6 = k72 = kThe value of the variation constant k is 72.
y = cx when x = 8, y = 12 so that 12 = 8c which gives c = 12/8 = 1.5
Suppose the two variables are denoted by X and Y. If Y is a constant multiple of X, that is Y = c*X, then the variation is direct. If the value of X*Y is a constant, that is Y = c/X, then the variation in inverse.
variation
40