If y varies directly with x, and y = 80 when x = 8, find the constant of variation k.?

Question

If y varies directly with x, and y = 80 when x = 8, find the constant of variation k.

Answer 1

y varies directly with x
Therefore,y=kx,where k is the constant of variation
now, 80=k*8
hence k=80/8=10
Therefore,the constant of variation k=10

Answer 2

"y varies directly with x" means y/x = k, so 80/8 = 10.

Answer 3

as x^2 will boost y will boost and as m decreases y will boost, in equation sort, y = ok x^2/m the place ok is a relentless of proportionality If Y=9, X=3, and M=5, then ok is 9 = ok 3^2/5 9 = 9/5 ok ok = 5 If x = 4 and m =10 y = 5 x^2/m y = 5(4^2)/10 y = 5(sixteen)/10 y =8

Answer 4

10,

y varies directly with x would imply that y = k*x

since y = 80 and x = 8, k must equal 10

Answer 5

So y=kx and 80=k8 so k must equal 10.

Answer 6

y = k x
80 = k. 8
k = 10

Answer 7

Y/X=K

80(y)/8(x)=K(?)