Web Reference: Use the vertical line test to identify functions. Graph the functions listed in the library of functions. A jetliner changes altitude as its distance from the starting point of a flight increases. The weight of a growing child increases with time. In each case, one quantity depends on another. Dec 26, 2024 · To visualize this concept, let’s look again at the two simple functions sketched in Figures 3 1 1 a and 3 1 1 b. The function in part (a) shows a relationship that is not a one-to-one function because inputs q and r both give output n. We use the Vertical Line Test to determine whether or not an expression is a function. If any vertical line intersects the graph exactly once, the expression is a function.
YouTube Excerpt: Learn how to evaluate functions in this video tutorial by Mario's Math Tutoring. We discuss
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