SAT MATH CHECKLIST: Facts and Formulas - Ivy Global
SAT MATH CHECKLIST: Facts and Formulas - Ivy Global
SAT MATH CHECKLIST: Facts and Formulas - Ivy Global
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Algebra <strong>and</strong> FunctionsDifference of squaresa 2 − b 2 = (a + b)(a − b)Properties of inequalitiesThe inequality is reversed by taking the negative of both sides taking the reciprocal of both sides multiplying or dividing both sides by a negativenumberRatesdistance = rate × timeDomain of a functionThe set of all the “input” numbers for which the functionstill worksRange of a functionThe set of all the “output” numbersFormula for slopem = riserun = y 2 − y 1x 2 − x 1<strong>Facts</strong> about slopeHorizontal lines have slopes of zero.Vertical lines have undefined slopes.Non-vertical parallel lines have equal slopes.Non-vertical perpendicular lines have slopeswhose product is -1.Linear functionsy = mx + bQuadratic functionsy = ax 2 + bx + cTranslation of y = f(x), a unitsvertically <strong>and</strong> b units horizontallyy − a = f(x − b)<strong>Ivy</strong> <strong>Global</strong>