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The graph of a rational function f is shown below. 10 15 10 _ _ _S_ -5 1-10 Fill in the blanks below. (Note that it is common to say a limit "has a value of co" if the function output increases without bound, or - co if the output decreases without bound. Use that notation in this question.) a. What is the vertical intercept of f? f(0) = Preview b. What are the roots of f? T = Preview c. What are the vertical asymptotes of f? 1 = Preview d. What is the horizontal asymptote of f? y = Preview\f