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coordinate plane

A plan formed by the intersection of a horizontal number line called the x-axis and a vertical number line called the y-axis.

quadrants

Four regions into which a coordinate plane is divided by the x-axis and the y-axis

ordered pair

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

origin

The centre point of a number line (ground floor of a hotel, freezing point on a thermometer)

horizontal line

Slope of zero

vertical line

Straight up and down line (height)

Distance

is the length of the line segment that connects two points

reflection

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

line of reflection

The line over which a figure is reflected. The vertices of the original and new figure are the same distance from this. The line of reflection can be the x-axis, the y-axis, or any line on the coordinate plane.

function

If you repeat an INPUT, and you always get the same OUTPUT, your data is a ______________________ .

independent variable

the tested varaible

dependent variable

the measure of change in the independent variable

Linear Function

y = mx + b

Non-Linear Function

does not form a line when graphed on a coordinate plane