Suppose that x and y vary inversely, and x = 2 when y = 4. Write the function that

[Cassie]

models the inverse...? variation:

a. y=2x
b. y=6/x
c. y=2/x
d. y=8/x

thanks for your help

 

[Josephine]

Try d

4 = 8/2 = 4 which is correct

Although a will give a correct substitution it is not varying inversely

Answer is d