Pre-Calculus Exam questions and answers Graded A+
Pre-Calculus Exam questions and answers Graded A+ d = √(x₂-x₁)²+(y₂-y₁)² -distance formula M = ((x₁+x₂)/2, (y₁+y₂)/2) -midpoint formula m = (y₂-y₁)/(x₂-x₁) -slope m₁ = m₂ -slopes of parallel lines m₁m₂ = -1 -slopes of perpendicular lines x = a -equation of a vertical line
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pre calculus exam questions and answers graded a