Exponentials and Logarithms

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.

  1. $\rhd$  Graphs of logarithms and exponentials (5:41) The graphs of $y=2^x$ and $y=\log_2x$.
  2. $\rhd$ Graph basic logarithmic functions (5:20) Graph $f(x)=-\ln(x+2)$
  3. $\rhd$ Graphing basic logarithmic functions (9:09) The graph of $y=\log_5x$.
  4. $\rhd$ Graphs of logarithmic functions (6:27) Is the given graph the graph of $y=1+\log_2x$, $y=\log_2x-1$, $y=-\log_2(x-2)$ or $y=-\log_2(x+2)$?
  5. * Practice Type of problem: Identify the graph of $y=\log_2(-x)+3$.