Learn to determine the domain and range of a function from its graph with Khan Academy's educational video.

When you are asked for the domain, you are to identify where a function exists with respect to the x-axis. As the x-axis is the horizontal axis (left to right), you would want to note the arrows on …

How to Find the Inverse of a Function (mathbff) Find the Inverse of a Rational Function (Mathispower4u) and this clear, concise series of videos on inverse functions:

Sal finds the intervals where the function f(x)=x⁶-3x⁵ is decreasing by analyzing the intervals where f' is positive or negative.

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Khan Academy

I am supposed to find f-g, f/g, fog, and gof and state the domain of each for this problem but I don't know how to do it because it is a rational function. This is what it looks like: f(x)= x+1/2x …

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