In the xy-plane, a parabola has vertex and intersects the x-axis at two points. If the equation of the parabola is written in the form , where , , and are constants, which of the following could be the value of ?
In the xy-plane, a parabola has vertex and intersects the x-axis at two points. If the equation of the parabola is written in the form , where , , and are constants, which of the following could be the value of ?