Web Reference: Functions from a Graphical Perspective. A function is a set of ordered pairs with the property that no two points in the set share the same first coordinate. 1.3 and 1.4 Parent Functions and Domain and Range Learning Goal: We are learning the graphs and equations of five basic functions; and using their tables, graphs, or equations to find their domains and ranges. Toward the end of the twentieth century, the values of stocks of Internet and technology companies rose dramatically. As a result, the Standard and Poor’s stock market average rose as well. The graph above tracks the value of that initial investment of just under $100 over the 40 years.
YouTube Excerpt: Learn how to evaluate functions in this video
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