worksheet is due at the end of the next class. Complete 1. Recall the equation of a circle of radius 1 centered at the origin: Is this a function? Why or why not? 2. A function that reverses the process of another function is called the inverse function. For example, if f (x) = 2x, then f (x) = =x as it returns us back to x. Write the formal definition of an inverse function from box 2 on page 56. 3. For a function f to have an inverse on a domain, f must be one-to-one. This means that every nd to exactly one input. We can check this property e function from