Write an equation in standard form for the quadratic function represented in the ta...

Using the points (-1, 15), (0, 6), and (1, 3), we can set up a system of equations to solve for the coefficients a, b, and c in the standard form f(x) = ax^2 + bx + c. This yields f(x) = 3x^2 - 6x + 6.