So,here we have a graph.For every unit of 1(x axis),the unit of the previous y axis is multiplied. Like this. (0,2),(1,4),(2,8),(3,16)........ I don't know how the formula will be,and had never seen this kind of graph. The y seems to be a geometric sequence,on which we can use, ## ar(n-1) ## .r is 2.a is 2 So 2 x 2(n-1) n is the value of x.For every value of x,we can now find the value of y. So how can we find the general formula of the graph?Is it ## y=2 x 2(x-1) ## ? I don't think so,If the x values started with 1,it's possible. I don't know why LaTeX is not working,Help please.