Graham Derreck

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2. Mobile Platform Questions and Feedback

Greetings, I find it convenient to use Khanacademy using the app. I do have one issue. I am left handed and I like to use the scratch pad with the tablet stylus. Usually well and good. However, if ...

1. Community
2. Study Group

Greetings, I am working my way through Algebra 1. Excellent learning resource! My question is to do with the use of the standard formula for linear equations. That formula doesn't seem to be as pop...