The critical points are: x=3/2 (because f'(x) = 0 <=> 4x-6=0 <=> x=3/2).
x=0 (because f'(0) is undefined).
Therefore: f is increasing on (- infinity, 0) U (3/2, + infinity) since f'(x) > 0 there.
f is decreasing on (0, 3/2) since f'(x) < 0 there.
MATH 121, Calculus l -" Exam ll (Fall 2013)
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Math 121 Precalculus Final Exam
NAME: TA: December 9, 1999
Give complete explanations, not just answers, for full credit. Sketch any calculator graph you use including the axes with a scale. Give exact answers whenever possible; otherwise give answers acc
MATH 121 Sample Final Exam
1. (20 pts) Without using your calculator, nd all solutions to |5x 3| = 4x + 2. You must
show all of your work. You may use your calculator to conrm your answer.
2. (20 pts) A ball is thrown up from a height of 5 feet with an in
MATH 121 Sample Final Exam - Fall, 2006
Answer all ten questions. Show your work neatly. You are not allowed to use any notes or index cards. Approximations will not be accepted, where exact answers are required. Example: 1.41421 . . . will no
Full credit will be given for correct answers with complete explanations. Give exact answers whenever possible, otherwise give answers accurate to two decimal places. 1. (10 pts) Determine whether the given statement is TRUE or FA