6 Precal questions please help

1.

Find the first six terms of the sequence.

a₁ = -4, a_n = a_n-1 + 7 (1 point)

-4, 3, 10, 17, 24, 31

-4, 7, 14, 21, 28, 35

3, 10, 17, 24, 31, 38

0, 7, 14, 21, 28, 35

2.

Find the first six terms of the sequence.

a₁ = -8, a_n = 5 • a_n-1 (1 point)

-8, -40, -200, -1000, -5000, -25,000

-8, -40, -35, -30, -25, -20

0, 5, -40, -35, -30, -25

-40, -200, -1000, -5000, -25,000, -125,000

3.

Find an equation for the nth term of the arithmetic sequence.

9, 11, 13, 15, … (2 points)

a_n = 9 + 2(n – 1)

a_n = 9 + 2(n + 1)

a_n = 9 + 2

a_n = 9 + 2(n)

4.

Find an equation for the nth term of the arithmetic sequence.

-3, -5, -7, -9, … (2 points)

a_n = -3 – 2

a_n = -3 + -2(n)

a_n = -3 + -2(n + 1)

a_n = -3 + -2(n – 1)

5.

Find an equation for the nth term of the arithmetic sequence.

a₁₀ = 32, a₁₂ = 106 (2 points)

a_n = -301 + 37(n – 1)

a_n = -301 + 37(n – 2)

a_n = -301 + 37(n + 1)

a_n = -301 – 37(n + 1)

6.

A
certain species of tree grows an average of 3.1 cm per week. Write an
equation for the sequence that represents the weekly height of this tree
in centimeters if the measurements begin when the tree is 400
centimeters tall. (2 points)