The right column changes by the same amount for each change of one in x.
So Ux is linear. That is, Ux = a + bx
That "same amount" is 3 so b = 3. That gives Ux = a + 3x
There are now two ways to find the value of a.
You can either take any row of the function table and solve the equation. Suppose you take row 3 - which is 4 and 8.
8 = a + 3*4 = a + 12
and that gives a = -4
OR
Take the sequence back two steps to what it would have been when x = 0. The sequence increases by 3 as you move up the xs. So it decreases by 3 for each step back. Then starting from x = 2 and y = 2 and moving back one step gives x = 1 and y = -1. A second step gives x = 0 and y = -4 (as before).
So, the final answer is Ux = -4 + 3x
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If the table defines the function f, then the answer is f(6).
6
B. Elements on the top right, excluding column 18.
1st u read the column that has the subject then the tally column last u determine/read the frequency column
Using a left join of: SELECT a.number FROM table a, table b WHERE a.number < b.number where right table.number is null