Let F be a function given by the following:F = {(0, − 2), (2, 1), (1, 8), (5, 5)} F(0) F(1) = = F(5) = F(2) = = Preview Preview Preview Preview

Describe why the horizontal line test is an effective way to determine whether a function is one-to-one?

During a nine-hour snowstorm, it snows at a rate of 1 inch per hour for the first 2 hours, at a rate of 2 inches per hour for the next 6 hours, and at a rate of 0.5 inch per hour for the final hour. Write and graph a piecewise-defined function that gives the depth of the snow during the snowstorm. How many inches of snow accumulated from the storm?

How do we determine the domain of a function defined by an equation?

Suppose the range of a function fis [5,8] . What is the range of |f(x)| ?

In your own words, explain the difference betweena relation and a function.

Why does the domain differ for different functions?

Why does the vertical line test tell as whether the graph of a relation represents a function?

How do you find the domain for the composition of two functions, fg ?

Use Horizontal Line Test to determine whether each graph represents a one-to-one function.