Quadratic Equations in Standard Form

Identify the vertex from the table.

• (0, 3)

• (1, 0)

• (2, -1)

• (3, 0)

What are the green dots called?

• axis of symmetry

• vertex

• parabola

• roots, zeros, solutions, or x-intercepts

A parabola has a vertex at (-3,2).
Where is the axis of symmetry?

• y = -3

• x = 3

• x = -3

• y = 2

Which of the following is a quadratic equation in standard form?

• 3x + 2y = 7

• y = -(x - 4)² + 8

• y = -2x² + 3x + 1

• y = 4x + 9

In the quadratic equation 2x² – 9x – 5 = 0, which is the constant term?

• 2x²

• x²

• – 9x

• – 5

What is another name for zeros of a quadratic function?

• Vertex

• Axis of symmetry

• x-intercepts

• y-intercepts

Which of the following is in the standard form?

• y² - 7y + 12 = 0

• x³ - x² + 3x -8 = 0

• x² +9x = 34

• y² - 10 = -3y

What is the first step in solving a quadratic equation using the quadratic formula?

• Identify the coefficients a, b, and c.

• Evaluate the discriminant.

• Rewrite the equation in standard form and set equal to zero.

• Substitute the values for a, b, and c into the quadratic formula.

In the quadratic formula, the expression b² - 4ac has a special name, what is it?

• Axis of Symmetry

• Pythagorean Theorem

• Discriminant

• The Zeros

If the discriminant is equal to zero then,...

• the quadratic equation has one real solution.

• the quadratic equation has two real solutions.

• the quadratic equation has two imaginary solutions.