Algebra 1 Chapter 8

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

What is the vertex of f(x) = x² + 4x + 3?

• (2,1)
• (-2,1)
• (0,0)
• (-2,-1)

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

• y = -2
• x = 3
• x = -3
• y = 2

Identify a, b, and c   f(x) = 3x² - 8 +5x

• A=3, B=5, C=-8
• A=3, B=-8, C=5
• A=3x², B=5x, C=-8
• A=3x² , B=-8, C=5x

The graph of a quadratic function is called a

• Parabola
• Vertex
• Axis of Symmetry 
• Vertex Form

What is the y-intercept of the following equation? f(x) = x² - 3x - 4

• (0,1)

• (0,-4)

• (0,3)

• (0,-3)

What is the axis of symmetry for this parabola?

• x = −1
• y = 3

• y = -1

• x = 3

• x = 1

• y = 1

• y = 3

• x = 3

• (-2,3)

• (0,3)

• (3,0)

• (0,-3)

What kind of function is this?

• Linear

• Absolute Value

• Quadratic

• Exponential

• None of the above