\f\f10f3 Let f(z) = 322+ 3. ot a. What are the domain and range of /7 b. What are the relative extrema of f? Justify your answer. . Are there any points of inflection? Justify your answer. d. Where is fincreasing and decreasing? Justify your answer. {4 points) Hem2 Hem3 wmema B 7 U| W|s|w 20f3 'A man walks in a straight path away from a streeflight at a rate of 4 feet per second. The man is 6 feet tall and the streetiight is 15 feet tall. Hem 1 o a. At what rate is the length of his shadow changing? _ Item 2 & b. At what rate is the distance from the top of the streetiight to the tip of his shadow changing when the man is 12 feet from the streetlight? @: ponts) froms = B 7 U |W F| | a