Example: Given f (x ) = -3x2 + 12x - 5, Write the function in vertex form: f(x ) = a(x - h)2+ k. Solution: f (2) = -3x2+12x -5 = -3(2 - 4x +4 -4 -5 = -3(x2 - 4xc + 4) + (-3) (-4) -5 = -3(2 - 2)2+ 12-5 = -3(x - 2)2+7 Answer: f(2) = -3(2 - 2)2+7 Exercise: Given f (20) = 2x2 + 12x +5. Use the example provided to write the function in vertex form f(x) = a(x - h)2+ k. Show your work in the box below using the Graphical Equation Editor. All steps are required