- Which of the following is not a function?
A.
y = 5*
B.
X
xlo
y
8
8
8
2
colo
4
c.
{(3,-2), (7-4), (3, 2), (10,-8)}
D.

2 is not function because 1 has no unique image

do you have the measurements?

18

step-by-step explanation:

draw the shape and you will see that f and k are actually at adjacent vertices (points of the hexagon that are neighboring).   so find the distance between (1,2) and (4,2).   that is easy since (1,2) and (4,2) is just a vertical distance to count, which is 3.   it is a regular polygon which means all sides are congruent.   you have 6 sides (hexa) so multiply 6 by 3 to receive 18.