If x = - 3 is the only x-intercept of the graph of a quadratic equation, which statement best describes the discriminant of the equation?

A) The discriminant is negative.

B) The discriminant is - 3.

C) The discriminant is 0.

D) The discriminant is positive.

Question

Mathematics

Dustin Russo

22 May, 19:47

If x = - 3 is the only x-intercept of the graph of a quadratic equation, which statement best describes the discriminant of the equation?

A) The discriminant is negative.

B) The discriminant is - 3.

C) The discriminant is 0.

D) The discriminant is positive.

+5

Answers (1)

Know the Answer?

Corey Decker · Answer 1

C) The discriminant is 0.

Step-by-step explanation:

Since the graph of the quadratic equation has only one x-intercept, we can conclude that the quadratic has only one real root.

If a quadratic equation has only one real root, then the discriminant is 0

If x = - 3 is the only x-intercept of the graph of a quadratic equation, which statement best describes the discriminant of the equation?A) The discriminant is negative.B) The discriminant is - 3.C) The discriminant is 0.D) The discriminant is positive.

If x = - 3 is the only x-intercept of the graph of a quadratic equation, which statement best describes the discriminant of the equation?

A) The discriminant is negative.

B) The discriminant is - 3.

C) The discriminant is 0.

D) The discriminant is positive.