Question

Jacob is solving a quadratic equation. He executes a

program on his graphing calculator and sees that the
roots are real, rational, and unequal. This
information indicates to Jacob that the discriminant
is
A) negative
B) not a perfect square
C) zero
D) a perfect square

Answer 1

D. A perfect Square

Explanation:

if the discriminant b²-4ac a perfect Square then the roots will be real, rational and inequal

if it is not a perfect Square then the roots will be real irrational and inequa

Answer 2

The answer is D). A perfect square

b2 - 4ac > 0

Roots are real, unequal and rational.