Question

Please help
Determine whether y varies inversely with x. If so find the constant of variation. y = x/7.
Select one:
a. Yes, k equals 1/7
b. Yes, k equals -7
c. Yes, k equals 7
d. No
If y varies inversely with x, what happens to x when y is tripled?
Select one:
a. x is tripled
b. x is divided by 3
c. x is cut in half
d. x is cubed
If y varies inversely with x, what happens to y when x is divided by 4?
Select one: a. y is divided by 6
b. y is doubled
c. y is divided by 4
d. y is multiplied by 4

Answer 1

1.directly.......k=1/7
2.x is halved by 3
3.y is multiplied by 4