For a function that models a relationship between two quantities, interpret key features of graphs and tables in terms of the quantities, and sketch graphs showing key features given a verbal description of the relationship. Key features include: intercepts; intervals where the function is increasing, decreasing, positive, or negative; relative maximums and minimums; symmetries; end behavior; and periodicity.
II.F.IF.5
Relate the domain of a function to its graph and, where applicable, to the quantitative relationship it describes.
II.F.IF.7
Graph functions expressed symbolically and show key features of the graph, by hand in simple cases and using technology for more complicated cases.
II.F.IF.7.a
Graph linear and quadratic functions and show intercepts, maxima, and minima.