Question

What is the direct variation equation if y varies directly with x and y = –9 when x = –45?

A. y=1/5x


B. y=-5x


C. y=5x


D. y=-1/5x

Answer 1

what 's the equation for direct variation ?

Answer 2

i dont know

Answer 3

look at your previous post :-)

Answer 4

what one

Answer 5

http://openstudy.com/users/baytotheocean#/updates/551c8878e4b0e258c164958f

Answer 6

anw okay so equation for direct variation is
\[\huge\rm y = kx \] where k is constant of variation
replace x and y by their values and then solve for k