Question

are these parallel? 2x+3y=1 and y=-2/3x+3 and if they are how do I know?

Answer 1

do you know the lines are parallel if the slopes are same?

Answer 2

twalls?

Answer 3

jadler???? what was that?
twalls?

Answer 4

ok...

Answer 5

ya so now check the slope of both the lines.
it comes out to be same that is -2/3.
so the lines are parallel.
you get it?
or you want me to explain in more detail?

Answer 6

just solve for y and compare the slopes

Answer 7

i think i was confused with the first equation, I have to flop the 2x (?) and that becomes negative?

Answer 8

yes you are right
just remember the general equatin y=mx+b always write in this format

Answer 9

but in this equation it leaves my b in a fraction, is that ok?

Answer 10

yes it wont matter with the value of b its just m that matters for checking parallel lines
actually thsess lines r same lines jus displaced from each other as the value of b is difffernt

Answer 11

got it! thank you much! this is a cool site! i have a final thursday!

Answer 12

dun worry you will score 100 percent.
practise the formulae

Answer 13

if you put it into y=mx+b and your m's are the same but your b's arent then teh lines are parrallel, if b's are the same but m's aren't then they both intersect at the same point on the y axis. If both the m and b are the same for both then they are ontop of eachother