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Angle

Two rays with the same end point.

angle of rotation

formed by rays drawn from the center of rotation to a point and its image

Bisector

if a line bisects a line segment, then it intersects it at its midpoint

Circle

r= asin(theta)

Congruent

A plane figure with the same size and shape.

corresponding angles

Angles that have the same relative positions in geometric figures.

corresponding sides

Sides that have the same relative positions in geometric figures

Endpoint

The point at each end of a line segment or at the beginning of a ray.

image

the resulting figure AFTER a transformation is performed on it

intersection

The graph of a compound inequality with "and" in which the solution is the overlapping or what is shared.

Isometry

a transformation that does not change the size or shape of a figure

Line

A straight path that goes without end in two directions.

line segment

Part of a line with two end points.

parallel lines

2 lines that never cross/intersect and stay the same distance apart

Perependicular Lines

Two lines are perpendicular if they intersect to form right angles.

point

an exact location in space

Pre-image

the original figure BEFORE a transformation is performed on it

ray

Part of a line that has one end point and goes in one direction without end.

reflection

It is a transformation that flips a figure over a line of reflection.

Reflection Line

A line that acts as a mirror so that corresponding points are the same distance from the mirror.

rotation

It is a transformation that turns a figure about a fixed point.

Transformation

a movement on the cartesian plane

translation

It is a transformation that moves points the distance and in the same direction.

vertex

The point where two sides meet. (Shared end points of the line segments of a polygon.)

Axis of Symmetry

a line that divides a parabola in two equal halves and goes through the vertex

Continuous

is a quantitative variable that has a continuum of infinitely many possible values

coordinates

Are used to pinpoint where you are on a map or graph. They are also referred to as or Cartesian coordinates.

Discrete

is a quantitative variable that is usually a count such as 0, 1, 2, 3

Distance

the property created by the space between two objects or points

Domain

The ______________________ is all the possible INPUT, X, values.

y=mx+b

Line equation

Linear Function

y = mx + b

Maximum

the highest possible y value for the graph of a quadratic function; also the y-coordinate of the vertex

Midpoint

if a line segment has a midpoint, then the 2 segments formed are congruent

Minimum

the lowest possible y value for the graph of a quadratic function; also the y -coordinate of the vertex

ordered pair

A pair of numbers that can be used to locate a point on a coordinate plane.

pattern

A repeating or growing sequence or design. An ordered set of numbers or shapes arranged according to a rule.

Perpendicular lines

lines in a plane that intersect to form 4 right angles

Quadratic Function

a function that can be written in the form f(x)=ax^2+bx+c, where a, b & c are real numbers and a is not equal to zero

Range

The difference between the greatest number and the least number in a set of data.

Rate of change

A value that results from dividing the change in a function (y-values) of a variable by the change in the variable (x-values). It is another name for slope.

Scatter plot

is a graph used to determine whether there is a relationship between paired data. Scatter plots can show trends in data.

slope

(y₂-y₁)/(x₂-x₁)

standard form of a line

Ax + By = C

x-intercept

the point where the line crosses the x-axis

y-intercept

the point where the line crosses the y-axis