Consider the arithmetic sequence presented in the table below. n 3, 64
an 126 3,725
Hint: an = a1 + (n - 1), where a is the first term and d is the common difference.

Part A: What is the first term, a1, of the sequence? (2 points)

Part B: What is the general term equation, an, for this sequence? (1 point)

Part C: What is the value of the 13th term of this sequence? (1 point)

a) 0,0; 1,1; and 2,2

step-by-step explanation:

these have the exact same coordinates, thus they are the correct function.

see explanation

step-by-step explanation:

a

(6r + 7) + (13 + 7r) ( remove brackets and collect like terms )

= 6r + 7 + 13 + 7r

= 13r + 20

b

remove brackets and collect like terms

13 - r - 1 + r

= 12 - r

c

remove brackets and collect like terms

= - 8 - r + 2r - 4

= - 12 + r

d

remove brackets and collect like terms

= 7r - - - 6r

[-   - = - - = - ]

= r -

answer: b

step-by-step explanation: