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.
- $\rhd$ The graph of a function (19:01) Given the graph of a function, find the domain, the range, pre-images and images.
- $\rhd$ Evaluating functions from graphs (0:43) Given a graph, find $f(-6)$.
- * Practice Type of problem: Given a graph, find $k(-1)$.
- $\rhd$ Evaluating expressions with function notation (1:22) Given the graphs of $f(x)$ and $g(x)$, find $2\cdot f(-6)+g(1)$.
- * Practice Type of problem: Given the graphs of $f(x)$ and $g(x)$, find $5\cdot f(1)+5\cdot g(9)$.
