2. Ken walks toward and then away from a wall. Is the graph of his distance from the wall a function of elapsed time? Why or why not? Answer the question using the definition of a function. Make a sketch of the graph. Label the axes. 3. Sketch the graph of a function that has each of the following: y= f(x) has a domain of all real numbers and range f(x)<0 y=g(x) has a domain x>0 and a range of all real numbers omulov y = k(x) has domain x E (-o, 00) and range У € [-1,1] y=h(x) has a domain of all real numbers and a range of {3}

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