In today's video, we're covering how to find the domain and range of a graph. We'll look at linear, quadratic, square root, and all sorts of piecewise functions. Watch 'til the end, as there will be some tricky parts to pay attention to so you can ace your exam - even if your teacher tries to trick you!
In short, the domain is the set of all inputs of a function, and the range is the set of outputs. When it comes to a graph, that means domain is all of the x-values, and the range is all of the y-values. Scan your eyes from left to right when finding the domain, and from bottom to top when looking for the range.