The nth term of a sequence is given by the expression bn + 4, where b is a positive constant. Which of the following is necessarily equal to b?
A. the value of the first term
B. the difference between the fourth term and the third term
C. the average (arithmetic mean) of the first three terms
D. the ratio of the second term to the first term
Answer:B
The nth term of a sequence is given by the expression bn + 4, where b is a positive constant. Which of the following is necessarily equal to b?
A. the value of the first term B. the difference between the fourth term and the third term C. the average (arithmetic mean) of the first three terms D. the ratio of the second term to the first term
Explanation: B