3
290
25
y=(320 x 25 )/ 40 = 200.
xy = K so K = 21
50
80
290
y is 12
25
1
x = 24
m = 24
y=(320 x 25 )/ 40 = 200.
-6/y=5/-2 5y=12 y=12/5
xy = is a constant (k) so k = -360. When y = - 36, x = 10
xy = K so K = 21
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.