Answer:
the answer is A
Step-by-step explanation:
np
The graph of the relation between x and y is as shown in attached figure
By applying the vertical line test we find that the relation is not a function because there are two points which are (1,-1) , (1,3) have the same value of x with different values of y which contradicts with with the rule of function.
(7 + i) - (6 - 2i) = 7 + i - 6 + 2i = 1 + 3i