Let's use an example
Say we had two lines P and Q. If P has slope 2/5, then Q must have slope -5/2 in order for P and Q to be perpendicular.
Note how -5/2 is the negative reciprocal of 2/5. In other words, you flip the fraction and the sign to go from either slope.
Another thing to notice is that the two slopes multiply to -1. This is true for any pair of perpendicular lines as long as neither line is vertical.
Answer:
b
Step-by-step explanation:
Answer: any number that’s not already used
Step-by-step explanation: It could be any number as long as it hasn’t already been used in that data set. Mode is the most occurring value, and there’s no mode when all numbers are different. Hope this helped;)
