Question

Which of the following is the equation of a line passing through the origin and parallel to the line 2x – y = 5?

a. 5x – y = 0
b. 2x – y = 0
c. 2x + y = 5
d. 2x + y = 0
e. x + 2y = 0

Answer 1

The answer is B. 2x-y=0, because parallel lines have the same slope (2x), and when you substitute 0 for Y, you get 0 for X-- the origin, (0,0)