equation that relates to the variables

FMMurphy

Junior Member
Joined
Mar 12, 2006
Messages
51
I have variables x and y that vary directly and y = -7 when x =14. I am to write an equation that relates the variables.
I have done -7=14k
-7/14 =k
then y =- 1/2 ???
 

skeeter

Senior Member
Joined
Dec 15, 2005
Messages
2,396
no ... k = -1/2

y = kx

y = (-1/2)x
 
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