I need help with solving this triangle.

Given f(x) = 2x^2- 5x+1, determine the function value f(2). do not f(x) = in your answer

Look at the following graph of the given equation. determine whether the equation is a function. explain why or why not.

The figures below are made out of circles, semicircles, quarter circles, and a square. find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations).