Question 1 of 7 Which statement best describes the function below?
f(x) = 2x3 + 2x2 -x
A. It fails the vertical line test.
B. It is not a function.
C. It is a many-to-one function.
D. It it a one-to-one function.

d

Step-by-step explanation:

it only makes sense as a one to one function

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.