# How do you find the constant of variation K for the inverse variation and write the inverse variation equation given x=3 y=-8?

##### 1 Answer

Jan 5, 2016

#### Answer:

k = - 24 and equation is

#### Explanation:

for y to vary inversely as x this is written

to make an equation we introduce the constant of variation k

equation is then : y =

using the condition that x = 3 when y = - 8

and substituting into the equation gives

now cross-multiply