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Khan Academy

Khan Academy: Two Variable Inequalities From Their Graphs

For Students 9th - 10th Standards
Fit an algebraic two-variable inequality to its appropriate graph. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or receive hints.
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Khan Academy

Khan Academy: Solutions of Inequalities Graphically

For Students 9th - 10th Standards
Given the graph of a two-variable linear inequality, check whether a given pair of values is a solution of the inequality. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or...

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