Will anybody teach me Direct or inverse variations ?

Question

jiteshmeghwal9 · Answer

@ParthKohli

whpalmer4 · Answer

Seriously?  What don't you know about them?

A direct variation will be of the form $$y = kx^n, n>0$$
Indirect or inverse variation will be of the form $$y=kx^n, n<0$$

Some examples from the real world:

The force returning a spring to its neutral position is proportional to the displacement (if we stay within the linear region), so it is direct variation:

F = -kx (Hooke's Law)

The "inverse square law" which characterizes things like the intensity of light from a point source, or the gravitational attraction between two bodies is of the general form:

$$F = \frac{k}{x^2}$$
So it is indirect variation with the square of the distance.

hartnn · Answer

its easy, direct variation mean all values of y/x is constant.
y/x = k ---> y=kx 
inverse variation mean all values of yx is constant. 
yx = k ---->y=k/x

jiteshmeghwal9 · Answer

ThaNX A LOT BOTH OF U FOR UR HELP :)