Someone help please.

it could b phase shift but i think that u would have 2 put it on the axis 2 really get it but that is what is thought n our grade but axis

Step-by-step explanation:

r(0,90)(x,y) . t(-5,0)

last option

step-by-step explanation:

∆def to ∆d"e"f"

- rotate 90 counterclockwise degrees

- then translated 5 to the left (x --> x - 5)

answer is the last option

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value