Question

x y
-2 -8
-4 -16
-6 -24
determine wheather y varies directly with x. if so, find the constant of variation and write the equation
....no
....yes, k=4 and y=4x
...yes k=-4 and y=-4y
...yes k=-4 and y=-4x

Answer 1

multiply x by 4 to get y so second answer.