Checking Basic Concepts
1. Graph
Identify the vertex, axis of symmetry, and x-intercepts.
2. A graph of
is shown.
- Which of the following is true:

- Find the vertex and axis of symmetry.


3. Use
to model the data in the table exactly.
4. Find the vertex on the graph of 
5. Solve the quadratic equations.



6. A rectangle is 4 inches longer than it is wide and has an area of 165 square inches. Find its dimensions.