The geometric sequence is found in the relationship between consecutive terms that is constant. In this problem, as I understand it, none of the functions forms a geometric sequence. The functions that form a geometric sequence have the form f (x) = h (a) ^ n where "a" is the constant relation between the successive terms. If you wrote the function "f (x) = - 2 (3/4) x", you wanted to write instead: f (x) = - 2 (3/4) ^ x So that would be the function that forms a geometric sequence, where the relation between the consecutive terms is 3/4. You can test it by dividing f (x) / f (x-1) Then you will see that the result of that division will be 3/4.
First order the numbers then cross out the numbers till in the middle the numbers 6.4 and 6.7 add then divide by two to get the middle and the median 13.1/2 =6.55
There are loads, but for example you can find the diagonal from a lamppost the the end of its shadow if you know the height of the post and the length of the shadow.
