Question

Find a ⋅ b.

a = <2, 4>, b = <2, 5>

<4, 9>

24

<4, 20>

16

Answer 1

Find the first six terms of the sequence.

a1 = -4, an = an-1 + 7

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

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

3, 10, 17, 24, 31, 38

0, 7, 14, 21, 28, 35

Answer 2

Find the sum of the first 12 terms of the sequence. Show all work for full credit.

1, -4, -9, -14, . . .