Writing Equations of Quadratics

What is the standard form of a quadratic?

• y = ax² + bx + c

• y = a(x - h)² + k

• y = mx + b

• y = (x - h)(x - k)

What is the vertex form a quadratic?

• y = ax² + bx + c

• y = a(x - h)² + k

• y = mx + b

• y = (x - h)(x - k)

Given zeros of x = 3 and x = -1, what would the factored forms be?

• (x - 3)(x - 1)

• (x + 3)(x -1)

• (x - 3)(x + 1)

• Not enough information

How do you find the a value of a quadratic equation?

• FOIL the factored zeros

• Plug the third point into your written equation

• Look on the graph

• Plug in the zeros to the equation

Given a zero of x = 3 and a zero of x = -3, what is the Axis of Symmetry?

• 0

• -3

• 3

• 6

Given the points (-2, 0) and (4, 0) what is the axis of symmetry?

• x = 1

• x = 0

• x = 2

• x = -4

Given a vertex of (-3, 2) and a zero of x = -1, what is the other zero?

• x = 0

• x = 1

• x = -3

• x = -5

Given a vertex of (2, -1) and a zero of x = 4, what is the other zero?

• x = 0

• x = -4

• x = -2

• x = 6

Given a maximum of 4, a zero of 2 and another zero of 8, what is the additional point you can use?

• (4, 5)

• (5, 4)

• (8, 0)

• (0, 4)

Given the points (3, 0), (-1, 0) and a minimum of -2, what is the missing point?

• (1, -2)

• (-2, 1)

• (-2, 3)

• (-1, -2)