What type of transformation takes the graph of f(x)=|x|f(x)=|x| to the graph of g(x)=2.5|x|g(x)=2.5|x|? vertical shift down of 2.5 vertical stretch by a factor of 2.5 vertical compression by a factor of 2.5 vertical shift up of 2.5

When you apply to the graph of the function following transformations

then you will get the function

In your case, the graph of the function was vertically shifted by a factor of 2.5 to form the graph of the function

correct choice is B

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.