Question

Could somebody check whether i solved the question correctly? If the straight lines 3x-y=-2 and ax+2y=3 are parallel then a=?

Answer 1

Y=3x+2
Y=-ax/2 +3/2

Answer 2

The both must have a common slope since they are parallel

Answer 3

They*

Answer 4

3x = -ax/2

Answer 5

I get a= -6

Answer 6

u can just get rid of the x and solve for a, so

3=-a/2

Answer 7

yes, a=-6 is correct

Answer 8

Is there another way of solving it?

Answer 9

By using the elimination method?

Answer 10

i dont think so.

Answer 11

elimination would help u find the x and y, but in ur case u were trying to find a coefficient,a