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Khan Academy
Khan Academy: Practice: Slope From Two Points
In this practice quiz, students are asked to calculate the slope of a line that passes through two given coordinate pairs. Includes hints.
Texas Instruments
Texas Instruments: Perpendicular or Parallel?
Students can use TI 73 calculators to explore equations that create parallel and perpendicular lines. Teacher will use the screen capture feature of the Navigator system to display students graphs and equations to discuss observations to...
Help Algebra
Help algebra.com: Polynomial and Rational Inequalities
Learn to solve inequalities and how to graph their solutions on a number line. The examples contain quadratics and rational expressions.
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