9.1
What is the distance formula
D= x2-x1^2 + y2-y1^2
What is a circle
Set of all points in a plane that are equidistant from a fixed point
What is the difference between a sequence and a series
A sequence is a function whose domain is a set of consecutive integers. A series is the sum of the terms in a sequence
What is an arithmetic sequence
A sequence of numbers where the difference is constant
How does the sign of an angels measure determine its direction of rotation
Clockwise and counterclockwise will take it in different directions
What is the midpoint formula
X1+x2/2 Y1+y2/2
What is a center
A fixed point
What is a sequence
A function whose domain is a set of consecutive integers
What is the constant distance called
Common difference
What is the initial side
An angle can be formed by fixing one ray
What is a perpendicular bisector
Division of something into equal parts
What is a radius
A distance r between the center and any point on the circle
What is summation notation
Adding a sequence of numbers to get a sum
What is an arithmetic series
Expression formed by adding the terms of an arithmetic sequence
What is the terminal side
Rotating the other way about the vertex
When finding the midpoint of a line segment joining two points, does it matter which point you start with
No
What is the standard form equation
X^2+y^2=r^2
What are the values in the range called
Terms of the sequence
What is the rule for an arithmetic sequence
An=a1+(n-1)d
When is the measure of an angle negative
When the rotation is clockwise
What is the distance between (4,6) (2,1)
Square root of 29
How are the slope of a line tangent to a circle and the slope of the radius at the point of tangency related
Two lines have to be perpendicular
A sequence can be specified by an equation or rule, true or false
True
The constant difference between consecutive terms of an arithmetic sequence is
Common difference
When is the angle coterminal
When their terminal sides coincide