algebra midterm review
consist of numbers, variables, and operations (does not have an equal sign)
a mathematical sentence formed by placing the symbol = between two expressions
a pairing of inputs with outputs such that each input is paired with exactly one output.
pair of numbers whose product is 1: the reciprocal of 2/3 is 3/2
terms that have the same variable parts. Constant terms are also like terms.
an equation whose graph is a line
slope of a nonvertical line is the ratio of the vertical change (rise) to the horizontal change (run) between any two points on the line
lines in the same plane that do not intersect; same slope
lines in the same plane that intersect to form a right angle; slopes are negative reciprocals
a mathematical sentence formed by placing an inequality symbol between two expressions
slope intercept form
y = mx + b
y-y1 = m(x-x1), where m is the slope and (x1,y1) is the point the line is passing through.
Ax + By = C
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