What is the range of this function?

all real numbers such that y ≤ 40
all real numbers such that y ≥ 0
all real numbers such that 0 ≤ y ≤ 40
all real numbers such that 37.75 ≤ y ≤ 40

i could probably can you me with a question of mine?

step-by-step explanation:

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

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b and c

step-by-step explanation: