Question

HELPPPPPPPPPPPPPPPPPPPPPPPP

Answer 1

This does not say it is part of a timed test. I will trust you to tell me if it is.
The discriminate is sqrt(b^2 - 4ac)
a is given as 4.
That makes the discriminate = sqrt(b^2 - 16c)
To get imaginary roots, you have to be taking the square root of something < 0

The answer is
b^2 < 16c <<<< answer

Answer 2

The discriminant is
.. d = b^2 -4*a*c
When the roots are imaginary, it is less than zero. You have a=4, so that means
.. b^2 -16c < 0
.. b^2 < 16c . . . . . . . . . . . . . . . . . coresponds to the 7th choice