This jingle has helped generations of algebra students recall the quadratic formula that solves every equation of the form $latex ax^2+bx+c=0$. The formula is as ...

For the parabola \(y=(x+6)(x-4)\) determine the coordinates and nature of its turning pont and the equation of the axis of symmetry. The roots are \(x=-6\) and \(x=4\). The aixs of the symmetry is ...

The coordinates of the turning point and the equation of the line of symmetry can be found ... y = (x + 1)(x – 3)\) and so the graph will cross the \(x\)-axis at \(x = -1\) and \(x = 3\).