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?

What is the discriminant of ?

Using the quadratic formula to solve 7x2 – x = 7, what are the values of x?

If 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 5x = 6x2 – 3, what are the values of x?

The first two steps in the derivation of the quadratic formula by completing the square are shown below. Which answer choice shows the correct next step?Step 1: Step 2:

Which equation has the solutions ?

Which equation shows the quadratic formula used correctly to solve 5x2 + 3x – 4 = 0 for x?

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

Using the quadratic formula to solve x2 + 20 = 2x, what are the values of x?