The graph shows a parabola. What is the equation of its axis of symmetry? 1041 8 6 4 2 X -10 -8 -6 -4 -2 0 2 4 6 8 10 -2 -4 -6 -8 -10 X=​

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?