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.
- $\rhd$ What is a function? (7:56) Piecewise defined function, table of a function, $x^2+y^2=4$
- $\rhd$ Evaluating functions (5:07) $g(x)=8x+2$, evaluate $g(-5)$, $g(2x+3)$, etc.
- $\rhd$ Examples finding the domain of functions (4:24) Domain of $f(x)=\frac{x+5}{x-2}$
- $\rhd$ How To Find The Domain of a Function – Radicals, Fractions & Square Roots (18:44) Domains of polynomials, radicals, fractions, square roots, etc.
