Answer:
The value of b is 2.
Step-by-step explanation:
Let the equation of line m is,
And, line n is,
Where, and are the slope of lines m and n respectively.
Since, line m and n are perpendicular,
We have, ,
Thus, the equation of line n is,
Now, the point (-1,0) is on line n,
Hence, the equation of line n is,
Also, lines m and n intersect at (0,b),
⇒ (0,b) is in both lines m and n,