Which is the graph of a quadratic equation that has a negative discriminant

Answer:
The only one
Step-by-step explanation:
The one that is shown has a negative b^2-4ac value.
We know this because the function has no real roots -> that means that they must be complex, which can only occur if b^2-4ac < 0
Answer:
it's D, the last graph.
Step-by-step explanation:
took the unit test review and made a 100