Question

Identify which lines are parallel.
a) y = 4x
b) y = - 1/4x - 3
c) 12x - 3y = 6
d) 4(y + 6) = x - 3
I know the slope for a is 4 and the slope for b is - 1/4, but I need help with the others.

Answer 1

For others, simply isolate y to identify slope.

Answer 2

a and c

Answer 3

Explain how you got this solution, @mustry

Answer 4

How did you get c?

Answer 5

not d is c

Answer 6

condition of parallel lines
m1=m2
4=4

Answer 7

You just need to isolate y to identify slope of the equation.

Answer 8

Okay. Thanks to all of you.