A translation is a movement of the graph either horizontally parallel to the \(x\)-axis or vertically parallel to the \(y\)-axis. The graph of \(f(x) = x^2\) is the same as the graph of \(y = x^2\).

Imagine you lined up every human being in the world by income, divided them into 100 groups ("percentiles") ranging from lowest to highest, and asked: How has the last generation of economic growth ...