Consider the line 6x+5y=2 What is the slope of a line parallel to this line?

What is the slope of a line perpendicular to this line?

Slope of a parallel line:
Slope of a perpendicular line:

Step-by-step explanation:

Slope of this line and its parallel line is equal

slope = - a / b

= - 6 / 5

Slope of a perpendicular line = 5 / 6

a) one student is chosen from classroom a, then a student is chosen from classroom b.  

step-by-step explanation:

independent events are ones in which the probability of one event does not affect the probability of the second event.

one student is chosen from classroom a; this does not affect the chances of choosing a student from classroom b.   this makes these independent events.

when one card is chosen from a standard deck and then set aside before a second card is chosen, the probability of the second card being chosen changes.   this makes them dependent events.

when one student is chosen from classroom a and then a second student is chosen from classroom a, the probability of choosing the second student changes.   this makes them dependent events.

when a letter is chosen from the alphabet and then a second letter is chosen, the probability of choosing the second letter changes.   this makes them dependent events.