Assertion: parabola's root | /r/HasProperty | real
Facets:
Source sentences:
text: The roots of (2) are real and different if y 1 2 – 4ax 1 > 0, i.e.
text: For values -2 < b < 2, the parabola will have no real roots.
text: The parabola will always have real roots.
text: The graph of has no discontinuity because of the fact that the parabola always has real roots.
text: the parabola will either have 2 roots (it crosses the x-axis twice), 1 repeating root (the parabola meets the x-axis at a single point), or no real roots (the parabola doesn't meet the x-axis at all)