Quadratic Functions Intro

​Review the function graphs we have learned so far.

Multiple Choice

Standard form of a quadratic equation

• y=x²

• y=ax²+bx+c

• y=mx+b

• y=x

Multiple Choice

The graph of a quadratic function is called a

• Parabola

• Vertex

• Axis of Symmetry 

• Vertex Form

Multiple Choice

What is the equation for axis of symmetry?

• y = 3

• x = 3

• x = 5

• x = 1

Multiple Choice

The axis of symmetry line passes through which point?

• y-intercept

• any random point

• vertex

• symmetrical point for the vertex

Multiple Choice

A quadratic function is graphed on the grid.

Which answer choice best represents the domain and range of the function?

• Domain: $$x\ge-3$$  

  Range: $$y\ge5$$  

• Domain: All real numbers

  Range: $$y\ge5$$  

• Domain: $$x\ge-3$$  Range: All real numbers

• Domain: $$y\ge5$$  

  Range: $$x\ge-3$$  

Multiple Choice

What are the domain and range of the graph?

• Domain: all real numbers

  Range: $$y\ge5$$  

• Domain: all real numbers

  Range: $$y\le5$$  

• Domain: $$1\le x\le6$$  

  Range: $$y\ge-5$$  

• Domain: $$1\le x\le6$$  

  Range: $$y\le5$$  

Multiple Choice

A parabola is upside-down when the value of a is:

• negative

• positive

• 0

• infinite

Multiple Choice

What is the vertex?

• (2, 4)

• (3, -1)

• (0, 8)

• (4, 2)

Multiple Choice

What is the vertex?

• (5,2)

• (2,5)

• (-2,5)

• (-5,2)

Multiple Choice

Does this parabola have a minimum or maximum and what is its value?

• minimum: 2

• maximum: 2

• minimum: 5

• maximum: 5

Multiple Choice

Is this a maximum or a minimum?

• max

• min

• cannot be determined

Multiple Choice

What are the x-intercept(s) of this graph?

• -1 and -3

• -1 and 3

• 1 and 3

• 1 and -3