Graphing Quadratics Review

What is the Axis of Symmetry of the function?

What is the range of the function?

What is the decreasing interval on the function shown?

What is the increasing interval on the function shown?

Determine the equation given the graph (HINT: Use the vertex and a test point to find the a-value)

Mathematical Equivalence

ON

Match the quadratic function to its corresponding features.

• Vertically compressed

• y = -5x² - 20x - 30

• y = -5x² - 4x - 10

• y = 25x² + 100x + 90

• y = 25x² - 10x - 30

Convert to vertex form.

• y=-(x-5)² + 21
• y=-(x+5)² + 21
• y=-(x+10)² + 21
• y=-(x-10)² + 21