Hello. Is there anyone out there who can answer this for me? I truly appreciate it. What is the slope of the line with points (1, 2) and (2, 1)?
A. -1
B. 1
C. -2
D.2

I'm stuck. Thank you.

What situation is an example of an observational study

Zahra runs a 500-meter race at a constant speed. which graph shows her distance from the finish line during the race?

An airplane is flying at an elevation of 5150 ft, directly above a straight highway. two motorists are driving cars on the highway on opposite sides of the plane, and the angle of depression to one car is 35 ̊ and to the other is 52 ̊. how far apart are the cars?