The parabola y= ax^2+bx+c is graphed below. Find a+b+c . (The grid lines are one unit apart.) https://latex.artofproblemsolving.com/c/e/2/ce264d13e5e7038f82ba3bae952d91fdf182b0ff.png
The ANSWER IS NOT 4
The vertex is (2,1) and it has no expansion or contraction, so its equaiton is: y - 1 = (x - 2)2
Multiplying out and simplifying: y = x2 - 4x + 5
a = 1, b = -4, c = 5
