Question 49015This question is from textbook Beginning Algebra
: How do I determine which two equations represent parallel lines?
y = 4x – 8
y = –4x + 8
y = 4x + 5
y = x – 8
You can put this solution on YOUR website! Make sure each line is in the slope-intercept formate: y=mx+b. The "m" represents the slope value. If not, re-write it. The lines with the same slopes will be parallel.
.
y = 4x – 8: m = 4
y = –4x + 8: m = -4
y = 4x + 5: m = 4
y = x – 8: m = 1
.
So, y = 4x-8 and y = 4x+5 are parallel because they have the same slope.
