Question

For which discriminant is the graph possible?

b2 – 4ac = 0


b2 – 4ac = 4


b2 – 4ac = –1

Answer 1

Answer:b^2 – 4ac = 4

Answer 2

b^2 – 4ac = 4

Explanation:

Since the graph crosses the axis twice, it has two real solutions. That means the discriminant must be positive.

b^2 - 4ac>0