This is a free lesson from our course in Algebra II
This lesson covers important basics of a circle like
radius,
center etc. Further you'll learn how to identify the
key elements and graph the circles. You will find some examples with solution, and
the instructor explains all that with the help of audio, video presentation and
in own hand writing. A circle is the set of all points equidistant from a given
point and this point is called the center. The distance from
the center to a point on the circle is called the radius. When the center of the
circle is at origin (0, 0), and the radius is r, its equation is x2
+ y2 = r2 and equation of circle with center
at point (h , k) is
(x - h)2 + (y
- k)2 = r2.
For example, equation of circle with center (3 , 3) and radius 2 is
(x - 3)2 +
(y - 3) 2 = 4.
Winpossible's online math courses and tutorials have gained rapidly popularity since
their launch in 2008. Over 100,000 students have benefited from Winpossible's courses...
these courses in conjunction with free unlimited homework help serve as a very effective
math-tutor for our students.
-
All of the Winpossible math tutorials have been designed by top-notch instructors
and offer a comprehensive and rigorous math review of that topic.
-
We guarantee that any student who studies with Winpossible, will get a firm grasp
of the associated problem-solving techniques. Each course has our instructors providing
step-by-step solutions to a wide variety of problems, completely demystifying the
problem-solving process!
-
Winpossible courses have been used by students for help with homework and by homeschoolers.
-
Several teachers use Winpossible courses at schools as a supplement for in-class
instruction. They also use our course structure to develop course worksheets.
