Answer:
Product of slope will be -1.
Step-by-step explanation:
We know that slope of the line describes its orientation , where tangent of the angle made by the line with the x axis will be the slope of the line .
Since here , We are given that line A and B are perpendicular to each other ,
If one line makes the angle a with x axis then other will make -(90-a) ,
So product of slope of the given lines will be , tan(a).tan-(90-a) = -1.
Now , sum of slopes can't be zero as they are not equal in magnitude
And , also slope are not equal as orientation of the lines are different.
Option A is the correct answer. Product of slopes of the lines will be -1.
