You know if something is a function or not because the X will never be used twice in a set. If it is, then it's not a function.
A. Uses -1 twice
B. Uses Nothing twice (good)
C. Uses 0 twice
D. Uses 0 twice
B is your answer
Answer:
i need the number line
Step-by-step explanation:
lol
20.21 multiplied by 999.801 is 20,205.97821, so the correct answer would be A. about 20,000
3xy(x+4)(2y+7)(xy+1) is what I got
