Question

A quadratic equation with a negative discriminant has a graph that

a. touches the x-axis but does not cross it.
b. opens downward and crosses the x-axis twice.
c. crosses the x-axis twice.
d. never crosses the x-axis.

Answer 1

d. never crosses the x-axis.
a negative discriminant means the quadratic equation can never equal zero (which is the x-axis)