12. PHYSICS The height h (in feet) of a certain rocket t seconds after it leaves the ground is modeled by h(t) = -16t2 + 48t + 15. Write the function in vertex form and find the maximum height reached by the rocket. ​

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?

Ineed with question three. i don't understand how i'm supposed to achieve 3 marks.

The graph of f(x), shown below, has the same shape as the graph of g(x)=x^2,but is shifted up 2 unit.what is the new equation?