Question

suppose that y varies inversely with x. write a function that models the inverse function.
x =5 when y = 7

Answer 1

http://openstudy.com/study#/updates/51f43986e4b0c8f6bc360e86

Answer 2

something varies INVERSELY to something else means
something = "n"/(something else)
or \(\bf y = \cfrac{n}{x}\)

what's "n" or constant of variation? we dunno, but we know that
when x = 5, y = 7 so
\(\bf y = \cfrac{n}{x}\\
7 = \cfrac{n}{5}\)

solve for "n", what does that give you?

Answer 3

y= 35/x

Answer 4

@jdoe0001

Answer 5

then the equation for that INVERSE VARIATION will be \(\bf y = \cfrac{35}{x}\)

Answer 6

thanks