Please solve it if you can

Use the function f(x) is graphed below. the graph of the function to find, f(6). -2 -1 1 2

Samantha is growing a garden in her back yard. she spend $90 setting up the garden bed and buying the proper garden supplies. in addition, each seed she plants cost $0.25. a. write the function f(x) that represents samantha's total cost on her garden. b. explain what x represents. c. explain what f(x) represents. d. if samantha plants 55 seeds, how much did she spend in total?

Which shows one way to determine the factors of 4x3 + x2 – 8x – 2 by grouping?