The parabola y = ax^2 + bx + c is graphed below. Find a + b + c. (The grid lines are one unit apart.) The parabola passes through (-2,8), (0,0), and (2,8).
The parabola y = ax^2 + bx + c is graphed below.
Find a + b + c. (The grid lines are one unit apart.) The parabola passes through (-2,8), (0,0), and (2,8).
y = 2x2 goes through the three specified points.
Therefore, a+b+c = 2
.
+948 
