2 coordinates
The formula for finding the distance between two points
sqrt (x-x')^2 + (y-y')^2
The definition of a circle
What is the set of all points equidistant from a fixed point (center)?
Helps us work with negative square roots.
What is i=sqrt -1?
The average of x's and y's.
What is the midpoint?
The standard form of equation for a circle.
(x-h)^2 + (y-k)^2 = r^2
The general form of a complex number.
What is a + bi?
The theorem that lets us derive the distance formula.
What is the Pythagorean Theorem?
The technique that helps us find the center and radius of a circle when the given equation is not in general form.
The technique used when dividing by a complex number.
What is "Converting the denominator into a real number "?