Question

Help !! I need the answers -direct variation -inverse variation- just the first 6 problems

Answer 1

Solve the equations for y. If x lies at the numerator on the other side, then it's direct variation. If it lies at the denominator, its inverse variation.

For example, in the first equation, you have

`y=(2)/(x)`

The equation is solved for y, and x is at the denominator, so this is an inverse variation.

As another example, if we solve the third equation for y (i.e. if we divide both sides by 4), we have

`4y=(8)/(x)\iff y=(2)/(x)`

so again this is an inverse variation.

Apply this rule to all equations to tell whether they are direct, inverse or neither.