Question

Finding a Function Rule Described by a Graph. Find the function rule that describes the function shown in the graph.

Answer 1

A function is a relation where there is only one output for every input. In other words, for every value of @$x@$, there is only one value for @$y@$. A function rule describes how to convert an input value (@$x@$) into an output value (@$y@$) for a given function. An example of a function rule is @$f(x) = x^2 + 3@$.