Question

in the equation 6x-12y=a and 3x-6y=b, a and b are constant. The two equations have many solutions . What is the realtionship between a and b?

Answer 1

two equations have many solutions if they are proportional to each other
i.e 6/3 = -12/-6 = a/b

Answer 2

find its slopes. if slopes are same then line will be parallel.

Answer 3

okay wait :)

Answer 4

yes they have the same slope:)

Answer 5

does that mean they are equal?

Answer 6

yes it does mean they are equal

Answer 7

yes mean lines are parallel and equal.

Answer 8

so a =b?

Answer 9

no !! a = 2b

Answer 10

oh yah for got! sorry :)

Answer 11

thansk for all of your help guys!

Answer 12

:)