The parabola y=ax^2+bx+c is graphed below. Find a+b+c. (The grid lines are one unit apart.)
The parabola y=ax^2+bx+c is graphed below. Find a+b+c.
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\(y= (x-1)^2-4\\ \color{blue}y=x^2-2x-3\)
a = 1, b = - 2, c = -3 a + b + c = - 4
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