F(x) = 3x2 + 2x – 1 f(-1) =

f(-1) = 0

Step-by-step explanation:

Given information

f (-1) or x = -1

Given function

f(x) = 3x² + 2x - 1

Substitute values into the expression

f(-1) = 3 (-1)² + 2 (-1) - 1

Simplify the exponents

f(-1) = 3 (1) + 2 (-1) - 1

Simplify by multiplication

f(-1) = 3 - 2 - 1

Simplify by subtraction

f(-1) = 1 - 1

f(-1) =

Hope this helps!! :)

Please let me know if you have any questions

25

step-by-step explanation:

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.