William W. answered • 05/04/19
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Math and science made easy - learn from a retired engineer
Solve the equation for y (in other words, turn it into the y = mx + b format). It becomes:
y = -x + 111
Find the slope of this line by finding the coefficient in front of the x. In this case that's -1. The perpendicular line has the slope that is the negative reciprocal. In this case that's 1
