If a quadratic equation can be factorised, the factors can be used to find the roots of the equation. The equation factorises to give \((x + 3) (x - 2) = 0 \) so the solutions to the equation \(x ...

The graph of the quadratic equation \(y = ax^2 + bx + c\) crosses the y-axis at the point \((0, c)\). The x-coordinate of any ... so the y-intercept is (0, -2) b) The constant term is 17, so ...