Question

4) Use the discriminant to determine how many real roots the following function has. Reminder: Discriminant = b^2 - 4ac

2x2 – 8x + 25
a. 2 real solutions
b. 1 real solution
c. No real solutions

Answer 1

c

Explanation:

We have a = 2, b = -8 and c = 25

D = b² - 4ac = (-8)² - 4 * 2 * 25 = 64 - 200 = -136

Since D < 0, the answer is no real solutions.