Answer:
1. im not sure
2. A. a function is a relationship or expression involving one or more variables.
B. for every output there is exactly one input value.
C. f(x)= 2x + 3
3. A. the relation between two expressions that are not equal, employing a sign such as ≠ “not equal to,” > “greater than,” or < “less than.”.
B. they compare different numbers.
C. y<6
Step-by-step explanation: