To reflect into an axis, we replace the variable OTHER than the variable of the axis we are reflecting in, by the negative of that variable. We wish to reflect the graph of y = x³into the x-axis. So we substitute the other letter y by its negative, -y -y = x³ y = -x³ That's the green graph. This happens to be one of those graphs such that the graph is the same whether we reflect it in the x or the y axis. Edwin