The below picture are few natural examples of parabolic shape which is represented by a quadratic polynomial. A parabolic arch is an arch in the shape of a parabola. In structures, their curve represents an efficient method of load, and so can be found in bridges and in architecture in a variety of forms.

The graph of `x^2+1=0`

Options

A. Intersects x‐axis at two distinct points.
B. Touches x‐axis at a point.
C. Neither touches nor intersects x‐axis.
D. Either touches or intersects x‐ axis.

Answer

C