Real-valued functions are mathematical functions that take real numbers as inputs and produce real numbers as outputs.
Topic 9.5: 9.5 Integrating Vector-Valued Functions
Real-valued functions cheat sheet for homework
The domain is the set of all possible input values for a function.
The range is the set of all possible output values for a function.
A continuous function is one where there are no breaks, jumps, or holes in its graph. It can be drawn without lifting your pencil from paper.