This is a collection of Algebra 1 tutorials and video lessons from the YouTube channel \"Kate\'s Math Lessons\".

What is a function? How do you use the vertical line test? Learn more about functions and determine if mappings, sets of ordered pairs, tables, or graphs are functions in this short algebra video.
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Need help factoring quadratics? This algebra lesson shows how to factor a quadratic with a leading coefficient that\'s not 1. See the rest of the lesson on factoring at katesmathlessons.com
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How do you factor a quadratic expression? Check out this short video to learn how to set it up and test your answer to see if you\'re correct. Learn how to determine the correct signs to use, identify factors of the constant term in x^2 + bx + c and use FOIL to check different combinations.
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This math lesson shows how to use the quadratic formula to solve a quadratic equation that is not in standard form.
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Learn how to solve a system of equations using the elimination method. Need more help? Check out a more detailed lesson on elimination at katesmathlessons.com
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Need help solving a system of linear equations? This video explains how to use the substitution method and also shows how to check your answer once you\'re done.
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Learn how to solve a system of linear equations using the elimination method
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