What is the vertex of the parabola \(y=2x^2-12x+13\)?

Correct answer: \((3,-5)\)

For the quadratic, \(a=2\) and \(b=-12\). The x-coordinate of the vertex is \(x=-\frac{b}{2a}=\frac{12}{4}=3\). Substituting \(x=3\) gives \(y=2(3)^2-12(3)+13=-5\), so the vertex is \((3,-5)\). Option B has the wrong sign for the x-coordinate, while option D has the wrong sign for the y-coordinate. Exam tip: for \(y=ax^2+bx+c\), first find the vertex’s x-coordinate using \(-\frac{b}{2a}\).