Question #N1
The graph of the function \(f(x)= x^2 + 2x + 3\) intersects the x-axis at two points. What is the sum of the x-coordinates of these two points?
A. -2
B. 0
C. 2
D. 4
Correct Answer is: A
The sum of the roots of a quadratic equation in the form of \(ax^2 + bx + c = 0\) is equal to \(-b/a\). In this case, a = 1 and b = 2, so the sum of the roots is \(-2/1 = -2\).