A portion of the graph of \(f(x)=ax^2+bx+c\) is shown below. The distance between grid lines on the graph is 1 unit.
What is the value of a+b+2c?
f(x) = - (x+1)2 + 8
f(x) = - (x2 + 2x + 1) + 8
f(x) = -x2 - 2x -1 + 8
f(x) = -x2 - 2x + 7
a = -1 b = -2 c = 7
a + b + 2c = -1 - 2 - 14 = 11
