For each of the following questions, if there is more than one solution, enter all solutions as a comma-separated list, like "1,3". a. Consider the function f(x) = 6(x+7) 6. i. What is the vertical intercept of f? (-6,0) Preview ii. What are the horizontal intercepts (or "roots") of f? Preview b. Consider the function g(x) = x(9-2x) (13 -2x). i. What is the vertical intercept of g? Preview ii. What are the horizontal intercepts (or "roots") of g? Preview