For the inverse variation equation xy=k, what is the constant of variation, k, when x= -3 and y =-2?

We know that

the equation of the inverse variation is
x*y=k> equation 1

where
 k is the constant of variation

so
for x=-3 and y=-2

to find the value of k,
substitute the values of x and y in the equation 1
(-3)*(-2)=k
k=6

the answer is
k=6

She should use 12/3 to measure