Disclaimer: The material in the videos below comes mainly from outside City Tech. The presentation in these videos may differ from the one given in your class. Please consult with your instructor to confirm whether a particular approach is acceptable in your class.
- $\rhd$ First absolute value examples (2:22) Find $|5|$, $|-10|$ and $|-12|$. What is the meaning of the absolute value?
- $\rhd$ Intro to absolute value equations and graphs (10:40) Solve $|x-5|=10$, $|x+2|=6$, $|4x-1|=19$. A discussion on the graph of $y=|x+3|$.
- $\rhd$ Absolute value inequality (7:39) Solve the inequality: $|5-2x |\geq 9$.
- $\rhd$ Absolute value inequalities (7:54) Solve the inequality: $|2x -4|<8$.
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$\rhd$ Absolute value inequalities (8:37) Solve the inequality: $|5x – 7|\geq 3$.
