Question

help me @arek

Answer 1

B?

Answer 2

Hint: functions are either one-to-one or many-to-one NOT one- to- many so if you see 2 or more pairs in which the first number is the same and the second number is different then its one-to-many and not a function.

Answer 3

do the vertical line test. you can't have 2 points with the same x coordinate

Answer 4

no not B as you have (-2,3) and ( -2,1)

Answer 5

A?

Answer 6

yes

Answer 7

thx can you help me with more?

Answer 8

ok but i only have 10 minutes