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# pre algebra--wilson

### 1-1,1-2,1-3,1-4

Numerical expression contains numbers and operations. ( multiplication, subtraction, division, addition)
Evaluate find the value of....
orders of operations Rules to follow when evaluating an expression with more than 1 operation
Algebra Branch of mathematics that uses symbols (variables)
Variable A letter or symbol used to represent an unknown value
algebraic expression Contains numbers, operations and variables
defining a variable Choose a variable and a quantity for the variable to represent
properties Statements that are true for any numbers
simplify Perform all possible operations
coordinate system, coordinate plane Intersection of 2 number lines at right angles meeting at their zero points
y - axis Vertical number line on coordinate system
x- axis Horizontal number line on coordinate system
origin point where number signs intersect
ordered pair Numbers used to locate points on a coordinate plane
x coordinate first number of ordered pair
y coordinate second number of ordered pair.
graph To draw a dot at the point that corresponds to ordered pair
relation set of ordered pairs
domain set of x coordinates in a realtion
range set of y coordinates in a relation
function Special relation in which each x-coordinate (domain) is paired with exactly one y-coordinate (range)
function rule Operation performed on domain (x) to get the range (y)
function table A table that lists the x coordinates, the function rule and the y coordinates
equation Math sentence stating 2 quantities are equal
scatter plot Relationship between a set of data with two variables, graphed as ordered pairs on a coordinate plane
Created by: victoria.ryker47