As the graph is quadratic we can see that the line crosses ... From the graph we can see that there are two points of intersection, one at –25 and one at 25. Our solutions are \({x}\) ...

For a quadratic equation of the form \(y = k{(x - a)^2} + b\), the following diagram shows the main properties: If k > 0, the vertex is a minimum turning point If k < 0, the vertex is a maximum ...