Does the graph represent a function? Why or why not? -10
10
-10
O A. No, because it fails the vertical line test.
O B. Yes, because it passes the horizontal line test
O C. Yes, because it passes the vertical line test.
D. No, because it fails the horizontal line test.

Step-by-step explanation:

There’s another way to find out if a graph represents a function Instead of doing the horizontal line test or doing the vertical line test, you could find each plot on the graph and see if there’s one or multiple x-axis that has more than one output for a example x=5, y=4 and x=5, y=8 is not a function and a other example is x=15, y=6 and x=15, y=8 is not a function for a other example x=16, y=6 and the x-axis equals nothing else than it’s a function.

To put it in a real life scene it’s like if a guy was dating a girl than he gets with a other girl at the same time , then in mathematical terms that would be not a function and if the guy was not dating anybody else except for one girl, then in mathematical terms it would be a function.

I hope this helped because I probably sent a hour on this answer-_-

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.

b) 1/3 * 1/5

step-by-step explanation:

each smallest part is 1/15 since the written one is 1/5 and it's divided by 3 equal parts. (1/5 )/3 = 1/15 = 1/3 * 1/5