Y=Ix+1I-3
the absolute value of( x+1) minus 3
My answer is A. Hands down A.
Answer:
X is just the variable or missing edge, side, angle .etc that you are looking for
Step-by-step explanation:
All it takes for a relation to be a function is for each possible first number of a pair there's only one possible second number.
So if any of the sets has two pairs with the same first number, that one's not a function.
The last one has (3,2) and (3,5) so isn't a function.