Khan Academy Static

Learn how to distinguish between two-variable relationships that are functions and two-variable relationships that aren't functions.

2161_Does_a_vertical_line_represent_a_function_.html

2164_Recognizing_functions_from_verbal_description_word_problem.html

2160_Recognizing_functions_from_graph.html

2163_Recognizing_functions_from_verbal_description.html

2162_Recognizing_functions_from_table.html