
Home > A2C > Chapter 9 > Lesson 9.2.2 > Problem 9-91
9-91.
Find the discriminant.
b2 − 4ac = 02 − 4(1)(−6) = 24
This equation has real roots.
b2 − 4ac = 02 − 4(1)(6) = −24
This equation has complex roots.
See part (b).
This equation has complex roots.
See part (a).
Find the vertex.
Is it above or below the x-axis?
See part (e).