What is the rule if x is 6 and y is 7. Then x is 5 and y is 5.
Table
IN(X) 6 5 4 3 2 1 0
OUT(Y) 7 5 3 1 -1 -3 -5
+26388 What is the rule if x is 6 and y is 7. Then x is 5 and y is 5.
Table
IN(X) 6 5 4 3 2 1 0
OUT(Y) 7 5 3 1 -1 -3 -5
arithmetical sequence:
\(\begin{array}{|rcll|} \hline a_n &=& a_1 + (n-1)\cdot d \quad & | \quad d = +2 \qquad a_1 = -3 \\ a_n &=& -3 + (n-1)\cdot 2 \\ a_n &=& -3 + 2n-2 \\ \mathbf{a_n} &\mathbf{=}& \mathbf{-5 + 2n} \quad & | \quad n = IN(X) \qquad a_n = OUT(Y) \\\\ \mathbf{OUT(Y)} &\mathbf{=}& \mathbf{-5 + 2\cdot IN(X)} \\ \hline \end{array} \)
