Question

V varies inversely with T and V = 12 when T = 6. Which equation shows this relationship?

I got V=72T

Answer 1

nope "inverse variation"
not direct

Answer 2

which equation did u use to find k ??

Answer 3

k = xy

Answer 4

so wouldn't that be k = 12 times 6 and that = 72.

Answer 5

hmm okay so replace k by 72 and then solve for V(y)

Answer 6

yep k value is right but that not suppose to be v = 72t
remember inverse variation is y = k/x

Answer 7

ok so V(y) = 72/x

Answer 8

yep right
but remember in this question x is t

Answer 9

ohh ok

Answer 10

inverse variation \[\huge\rm y = \frac{ k }{ x }\]
\[\huge\rm y = kx \] direct variation

Answer 11

so V = 72/t ?

Answer 12

yep