[tex]\begin{array}{c|c|c}\underline{\quad (x,y)\quad}&\underline{\quad y=2x\quad }&\underline{\quad Answer\quad }\\(-1, a_o)&a_o=2(-1)&a_o=-2\\(0, a_1)&a_1=2(0)&a_1=0\\(1, a_2)&a_2=2(1)&a_2=2\\(2, a_3)&a_3=2(2)&a_3=4\\(3, a_4)&a_4=2(3)&a_4=6\\(4, a_5)&a_5=2(4)&a_5=8\end{array}[/tex]