Answer:
The slope of the perpendicular line is -b/a
Step-by-step explanation:
Perpendicular lines have slopes that multiply together to equal -1
Let the slope of the perpendicular line be p
a/b * p = -1
Multiply each side by b/a so we can isolate p
a/b * b/a * p = -1 * b/a
p = -b/a
The slope of the perpendicular line is -b/a
