Question

Use the sequence below

to complete each task.
-6, 1, 8, 15, ...
a. Identify the common difference (a).
b. Write an equation to represent
the sequence.
C. Find the 12th term (22)

Answer 1

d=7, b -13+7n c 71

Explanation:

a= - 6

2nd term=a+(n_1)d

a+d

1+6

=7

b tn a-(n_1)d

_6+(n_1)d

_6 +7n_7

_13+7n

tn a+11d

6+11(7)

6+77

=83