A researcher posts a newspaper advertisement offering $20 in exchange for participation in a short study. The researcher accepts
2 answers:
You might be interested in
Answer:
(B)Use the slope formula to prove the slopes of the diagonals are opposite reciprocals.
Step-by-step explanation:
Two lines are perpendicular if the product of their slope is -1. That is, the slope of one is the opposite reciprocal of the other.
Mathematically, if their slopes are
<u>Therefore, the correct option is B.</u>