Is #y=0.5x# a direct variation equation and if so, what is the constant of variation?
1 Answer
Jan 5, 2016
yes it is a direct variation equation and constant of variation (k ) =0.5
Explanation:
when 2 quantities vary directly this can be expressed as follows
to make this into an equation we have to introduce k , the constant of variation.
compare this to y = 0.5 x and so k = 0.5
