Answer: 【Answer】:1. 02. 03. 04. 05. 06. 07. 0Step-by-step explanation:【Explanation】: 1. The parabola crosses the x-axis at the point where y=0. For a parabola, this is the vertex. In this case, the vertex is at x=0.2. Similarly, for this parabola, the vertex is also at x=0.3. For this parabola, the vertex is at x=0.4. For this parabola, the vertex is at x=0.5. For this parabola, the vertex is at x=0.6. For this parabola, the vertex is at x=0.7. For this parabola, the vertex is at x=0.