1.1. Part of the graph of$y=2{x}^{2}−4x−1$ is shown on the grid.

Use the graph to find estimates for the solutions of the equation $2{x}^{2}−4x−1=0$

Give your solutions correct to one decimal place.

1.2. By drawing a suitable straight line on the grid, find estimates for the solutions of the equation ${x}^{2}−x−1=0$

Show your working clearly.

Give your solutions correct to one decimal place.