Economists use the shape of the graph as a shorthand to describe the ... A variant of this is a square root-shaped recession where growth recovers but then plateaus before reaching pre-crisis ...

The graph of \(y = x^2 - 6x + 9 \) touches the x-axis at \( x = 3\). It is not possible to find the square root of a negative number, so the equation has no solutions. The graph of \(y = x^2 + 2x ...