YREX
3. Describe the discriminant and nature of the roots of x2 - 4x + 4 = 0.
A. The discriminant is greater than 0 and is a perfect square, the two roots
are real and rational.
B. The discriminant is greater than 0 and is not a perfect square, the roots
are real and irrational.
C. The discriminant is less than 0, the roots are non-real.
D. The discriminant is equal to O, the roots are equal and real.
4. The nature of the roots depends on the value b2 4ac and it is known as
the
A. Completing the Square Method C. Square Root
B. Discriminant
D. Quadratic Formula
5. Find p so that px2 + 8x + 16 = 0 has one real root.
A. 1
C.4.
B. 2.
D. 8​