Question 66691
(a) y=6x-5   (b) y=-6x+5    (c) y=6x+1     (d) y=-1/6x-5

To determine which two represent parallel lines is easy because your equations are in slope-intercept form. y=mx+b in which m is the slope:

So, (a) Has a slope of 6, (b) Has a slope of -6, (c) Has a slope of 6, and (d) Has a slope of -1/6. When concerning yourself with parallel lines remember that the lines have the same slope. Therefore, a and c, which both have a slope of 6, are your answers.


Good Luck!
S_I