The term to term rule of a sequence is "multiply by 3 and add 1". The third term is 13. Work out the first term of the sequence.

The first term is 1

Step-by-step explanation:

The forward term to term rule is "multiply by 3 and add 1"

The backward rule is therefore

"subtract 1, then divide by three"

Apply the backward rule twice to go from 3rd to first term:

(13-1)/3 = 4

(4-1)/3 = 1

The first term is 1

the image of (6, 9) under a dilation is (4, 6). the scale factor is

make sure you have version 2.50

try looking in the very back of the book : )

step-by-step explanation:

you can download it here