8.1-8.4 · Coordinate geometry of the circleLesson 1 of 12Free preview
The equation of a circle
Every point on a circle is r from the centre (a, b). Pythagoras turns that fact into (x - a)^2 + (y - b)^2 = r^2.
8.1-8.4 · Coordinate geometry of the circleLesson 1 of 12Free preview
Every point on a circle is r from the centre (a, b). Pythagoras turns that fact into (x - a)^2 + (y - b)^2 = r^2.