MATHEMATICS 10 ACTIVITY SHEET NO.3 (WEEK 5) GEOMETRIC SEQUENCE VS ARITHMETIC SEQUENCE NAME: DATE: GRADE & SECTION: SCORE: A. Choose the letter that you think best answers the question. Write your answer on your answer sheet. 1. This refers to the number that is being multiplied to obtain a geometric sequence. A. Number of Terms C. Common Difference B. Common Denominator D. Common Ratio 2. Which of the following statements is true to all geometric sequences? A. If the common ratio is negative, then the sequence is increasing. B. If the common ratio is negative, then all the terms of the sequence is also negative. C. If the common ratio is less than one, then the sequence is decreasing. D. If the common ratio is less than one, then the sequence is increasing. 3. If the common ratio of a sequence is -3 and the first term is 3, then the fourth term is A. 27 B. -27 C. - 81 D. 81 4. Which of the following is an example of a geometric sequence? A. 2, 4, 6, 8, ... C. 14 , 12 , 1, 2, ... B. 12, 8, 4, 0, ... D. 1, 12 , 13 , 14 , .... 5. Supply the missing term in the sequence 1, , 1/4 , 1/8 , ... to make it a geometric sequence. A. 2 B. 1/2 C. 3 D. 1/3 6. Which of the following statements will let you obtain the common difference of an arithmetic sequence? A. Divide the first term by the second term of the sequence. B. Subtract the first term from the second term of the sequence. C. Subtract the second term from the first term of the sequence. D. Divide the second term by the first term of the sequence. 7. What is the common difference in the sequence 1, 1/2, 0, - 1/2, -1, ...? A. -1 B. - 1/2 C. 0 D. 1/2 8. Which of the following is NOT an arithmetic sequence? A. -1, 0, 1, 2, 3, 4, 5, ... C. 0, -2, - 5, -9, -14, . .. B. - 1/2 , 1/2, 3/2, ... D. 1/2 , - 1/2 , - 3/2, - 5/2 , ... 9. What term fits on the blank in the sequence , 0, 3, 6, ...? A. -3 B. O C. 3 D. 6