Question

Fan and medal?
Suppose x varies directly with y.

Use the fact that x = 39 when y = -117 to find the constant of variation and to write the equation of variation.

Answer 1

divide y by x

Answer 2

Okay, then what?

Answer 3

that is your "constant of variation"

Answer 4

you are going to end up with an equation that looks like \[y=kx\] what you need is \(k\)
to find it, divide the y value -117 by the x value 39

Answer 5

what do you get for \(-117\div 39\)?

Answer 6

-3

Answer 7

yes, so final answer is \[y=-3x\]

Answer 8

Oh woe. That's all?

Answer 9

yeah these are real real (real) easy once you do one or two
that is all, one step really

Answer 10

Okay. Thank you :)

Answer 11

yw