Worked examples identifying the equations and slope of horizontal and vertical lines.
Watch the next lesson: https://www.khanacademy.org/math/high-school-math/math1/math1-two-var-eq/math1-slope-intercept-form/v/slope-intercept-form?utm_source=YT&utm_medium=Desc&utm_campaign=highschoolmath
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Missed the previous lesson? https://www.khanacademy.org/math/high-school-math/math1/math1-two-var-eq/hor-and-ver-lines-math1/v/slope-of-a-line-3?utm_source=YT&utm_medium=Desc&utm_campaign=highschoolmath
High School Math on Khan Academy: Did you realize that the word “algebra” comes from Arabic (just like “algorithm” and “al jazeera” and “Aladdin”)? And what is so great about algebra anyway? This tutorial doesn’t explore algebra so much as it introduces the history and ideas that underpin it.
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