Your question is not complete.
You need to know either the gradient of the L1 line, or whether the L1 line is parallel or normal to the L2 line.
You need to know some characteristic of the L1 line to solve the task.
A line L1 passes through the points (2,2), another line L2 passes through two points (-4,-2) and (-2,6). Find the equation of L1
1 answer