1. If a quadratic equation has a discriminant of 16, what is not always true about its solutions.
A. All solutions are rational numbers
B. All solutions are real numbers
C. All solutions are integers
D. There are two solutions.
C. The solution may not be integers. Since the discriminant is positive, there are two real, rational roots. This does not mean that the rest of the quadratic formula will work out to give a whole number.