Question

Which of the equations listed are parallel lines?

A:y=2x+ 3
B: y = 2x-5
C:y= -2x+ 3

Answer 1

A and B

Explanation:

Hello!

Parallel lines are lines with the same slope but different y-intercept.

y = mx + b

• y = output, y-value, ordinate
• x = input, x-value, abscissa

• m = slope
• b = y-intercept

A:

y = 2x + 3 has a slope of 2 and a y-intercept of 3.

B:

y = 2x - 5 has a slope of 2 and a y-intercept of -5

C:

y = -2x + 3 has a slope of -2 and a y-intercept of 3

Since A and B have the same slope but a different y-intercept, they are parallel lines.