Question

Help :(

Assume the y varies inversely with x and y = -3 when x = 4. Write the indirect variation equation for the relationship.

Answer 1

Inversely means

\[y = \frac{ k }{ x }\]

Answer 2

Wait is xy = -12 right??

Answer 3

So plug in your 'x' and 'y' and solve for 'k'

\[-3 = \frac{ k }{ 4 }\]

multiply both sides by 4

\[k = -12\]

So now your equation would be

\[y = \frac{ -12 }{ x }\]

Hope that helps

Answer 4

And yes...what you wrote is the same as what I wrote....notice if you divide both sides of YOUR equation by x...you get what I get :)

Answer 5

Cool :) Thanks :)

Answer 6

No problem! :)