Find the equations of both the straight lines that are inclined at an angle of 45 ° with straight line 2x + y - 3 = 0 and passing through the point (-1 , 4)
tan θ = (m1 - m2)/(1+ m1m2)
The Attempt at a Solution
If I were to use the equation above, how would I know which is m1 and m2? Is there anyway to test it out or deduce which is m1 and which is m2?