Can someone help me with part A? I've been stuck on it for 30 minutes now and nobody has been able to help me with it so far :(

Answer:
The discriminant is negative.
Step-by-step explanation:
Since the parabola does not hit the x-axis, there are no x-intercepts to the graph or real roots of the equation. This means the square root portion of the quadratic formula failed to produce any real solutions, because you ended up trying to take the square root of a negative number.
When this happens, the equation will have two imaginary/complex solutions.