Lesson 9.1

Page 667-669

#1, 3, 7-19 (ODD), 21-33 (EOO),35, 37-43 (ODD), 47-71 (EOO),

73-81 (EOO), 83, 85, 91

Circles and Parabolas

Objective

Students will know how to recognize and write equations of circles and parabolas in standard form, and how to use the reflective properties of parabolas.

Circle - is the set of all points (x, y) that are equidistant from a fixed point, called the center of the cirlce.

What is the distance between the center and any point (x, y) on the circle???

RADIUS

What does a parabola look like???

What type of function has a parabola as its graph???

quadratics