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Level 433

## Ignore words

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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.
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