Quadratic Functions

Does this graph in the back have maximum or minimum value?

• maximum
• minimum
• neither
• both

Find the zeros.

• 0 and 4
• 0 and -4
• 0
• -4

What do we call the graph of a quadratic function?

• parabola
• linear
• cubic
• sinusoidal

What is the vertex of this function?

• (0, -3)

• (1, -4)

• (-2, 5)

• {-1, 3}

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

• y = -2
• x = 3
• x = -3
• y = 2

• a = 2; b = 3; c = 4

• a = 2; b = -3; c = 4

• a = 2; b = -3; c = -4

• cannot be determined

Which of the following is a quadratic in standard form?

• y = 7x + 1

• y = x² + 3x - 1

• y = 5x³

• y = 4 - x²

What is the green dashed line called?

• roots or x-intercepts
• parabola
• axis of symmetry
• y intercept

Solve
x² + 13x + 12 = 0

• x = -1, x = -12
• x = -1, x = -24
• x = -2, x = -6
• x = -2, x = -12