Question 5
Suppose that P1 and P2 are two different points in a Cartesian coordinate system, with P1 located at (3,−2) and P2 at (−1, 5). Let L1 and L2 be lines passing through P1 and P2 respectively. Based on the above data, answer the given subquestions.
If the x−intercept of the line L1 is 1 and y− intercept of the line L2 is -1 and If θ is the angle between L1 and L2, then tan θ is equal to