Thread: Parallel lines.

How would I find...
Which of the following is an equation of the line in the xy-plane that passes through the point (2,-1) and that is parallel to the line with equation 2x-3y=5?

A) y= -2x-3/2
B) y= -3/2x + 2
C) y= 2/3x-7/3
D) y= 2/3x-1

Originally Posted by dnntau

How would I find...
Which of the following is an equation of the line in the xy-plane that passes through the point (2,-1) and that is parallel to the line with equation 2x-3y=5?

A) y= -2x-3/2
B) y= -3/2x + 2
C) y= 2/3x-7/3
D) y= 2/3x-1

I recommend you do the following:

Rearrange the equation into the form . will be the gradient, hence find which equations from list have the same gradient. Then input your point into the equation and solve for c, and find the c that matches from the list.

Thank you.