###
transformation

an operation that maps an original figure onto a new figure

###
coordinate

is the number that corresponds to a point on the number line

###
a negative number

is a number less than zero

###
the opposite of a number

is two numbers with the same absolute value, but different signs

###
a positive number

is a number greater than zero

###
the absolute value of a number

is the distance a number is from zero

###
a translation

is when you slide a figure from one position to another, without flipping it

###
a reflection

is when you flip a figure over a line of symetry

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integer

is any number from the set (...-3, -2, -1, 0, 1, 2, 3...) where ... means continues indefinetly

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mean

is the average. to find it, add up all of the addends and divide by the number of addends

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quadrant

the x and y-axis seperate the coordinate plane and make four quadrants

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additive inverse

an integer, and its opposite

###
inequality

compares numbers or quantities, using <, or >

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