Intro to Quadratic Functions

Intro to Quadratic Functions

Objectives:

* Model a real-world situation with a quadratic function.

* Identify a quadratic function.

* Graph quadratic functions in vertex form.

1. How is the perimeter of a rectangle determined?

2. How is the area of a rectangle determined?

Now, let's evaluate a function

 $f\left(x\right)=-2\left(x\ -4\right)^2\ -3$  

• Step 1: Create a table of values for x = 2 , 3, 4, 5, 6

• Step 2: Plot this table of values of the function.

Multiple Choice

Where is the Vertex located on the graph?

• (3, 4)

• (-4, 3)

• (4, -3)

• (-3, 4)

Open Ended

Compare the graph f(x) to the parent function.

Poll

The graph translated three units _____________

• right

• left

• up

• down

Multiple Choice

Looking at the graph of f(x), what type of symmetry does the graph have?

• Horizontal

• Vertical