The Quadratic Formula Answers

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

Using the quadratic formula to solve x2 = 5 – x, what are the values of x?

What is the discriminant of ?

In the derivation of the quadratic formula by completing the square, the equation is created by forming a perfect square trinomial. What is the result of applying the square root property of equality to this equation?

Which equation can be solved using the expression for x?

The graph of an equation with a negative discriminant always has which characteristic?

Which equation shows the quadratic formula used correctly to solve 7x2 = 9 + x for x?

Using the quadratic formula to solve 5x = 6x2 – 3, what are the values of x?