Find the equation of the line perpendicular to y=(-2/3)x+5 and passes through (-2, 2)
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Tutor.com
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This interactive online tool enables students to simultaneously visualize and manipulate three linked representations of a distance-rate-time problem. The side-by-side tool format features two airplanes (each flying at a constant speed) on merging jet routes, the corresponding distance-vs.-time graphs, and the corresponding linear equations.
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NASA
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A helpful scientific calculator that runs in your web browser window.
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Holt Online Learning
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Video Lesson how to identify, solve, and graph linear systems.
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Nutshell Math
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Some worked example problems that point out many common errors students make when solving them.
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Pauls Online Math Notes
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Excellent site showing examples of algebra, trig, calculus, differential equations, and linear algebra.
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Paul's Online Math Notes
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Description of direct variation and the constant of variation; with a graph and related question
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Oswego City School District Regents Exam Prep Center
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The perfect study site for high school, college students and adult learners. Get help to do your homework, refresh your memory, prepare for a test, ....
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SOS math
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