Warm Up What do you know about circles?
Algebra 3 Chapter 10: Quadratic Relations and Conic Sections Lesson 3: Circles
VOCAB Circle – the set of all points (x,y) that are equidistant from the center Radius – the distance between the center and any point on a circle
TODAY Today we will learn how to graph circles algebraically
CIRCLES
Directions(Graphing) Write the problem in standard form Take the square root of r Plot the 4 points on the graph Draw your circle through the points
I DO (Graphing)
WE DO (Graphing)
YOU DO (Graphing)
REVIEW Today you learned…
HOMEWORK Worksheet 10.3B (1 – 6)
Warm Up What is the standard form of a circle What is the standard form of a parabola
Algebra 3 Chapter 10: Quadratic Relations and Conic Sections Lesson 3: Circles
TODAY Today we will learn how to write the standard form equation of a circle when given a radius and whose center is the origin
Directions Square the radius Plug it into the formula
I DO (Equations with the radius)
WE DO (Equations with the radius)
YOU DO (Equations with the radius)
REVIEW Today you learned…
HOMEWORK Worksheet 10.3B (10 – 13)
Warm Up
Algebra 3 Chapter 10: Quadratic Relations and Conic Sections Lesson 3: Circles
TODAY Today we will learn how to write the standard form equation of a circle when given a point on the circle and whose center is the origin
Directions Find the distance from the point to the origin (this is your radius) Square the radius Plug it into the formula
I DO (Equations with the radius)
WE DO (Equations with the radius)
YOU DO (Equations with the radius)
REVIEW Today you learned…
HOMEWORK Worksheet 10.3B( ) 10.3B (14 – 17)