Answer:
6
Step-by-step explanation:
The answer is 6 if you do some simple multiplication.
It’s 4d-5=2d+7 try my best
M = -2
In perpendicular lines, the slopes are opposite reciprocal. This means you flip the sign (from + to - or from - to +) and flip the numerator and denominator.
So 1/2 becomes negative, and 2/1 = 2
So the slope is -2