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the halfway point of a segment between two ordered pairs, (add x coordinates/2, add y coordinates/2)
solution of an equation in two variables
an ordered pair of replacements for the variables that results in a true statement when substituted into the equation
a relationship between input and output values, there is exactly one output (range) value for each input (domain) value
standard form of a linear equation
Ax + By = C, where A ≥ 0, A and B are not both zero, and A, B, and C are integers whose GCF is 1
ƒ(x), x represents elements of the domain, and ƒ(x) represents the elements of the range, "ƒ of x"
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