A bar graph. This would be what you would use. I don't know if I misinterpreted your question, but let me know if you still need help. I hoped I helped!
Answer:
3. is the correct answer
Step-by-step explanation:
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>
8 6/10 is the correct answer