# math vocab pre algebra ch 2

### 13 terms by icepigmt

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### 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

### integer

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

### mean

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

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

an integer, and its opposite

### inequality

compares numbers or quantities, using <, or >

Example: