Method 1:

Find the reference coordinates of the moving point, that is, the starting coordinates of the movement. Calculate the coordinates of the starting point after moving: move to the right: coordinate after moving = reference coordinate+moving distance. Move to the left: moved coordinate = reference coordinate-moving distance.

Represents the length of a line segment: the number represented by the right end of the line segment-the number represented by the left end of the line segment. Column equation: according to the relationship of motion or the conditions in the topic, the equations are listed, and the unknowns are usually the motion time t, velocity v or the required coordinates; Solve.

Method 2:

Is the corresponding conclusion, all the known related quantities are marked on the diagram, the known quantities that can be found nearby are also marked on the diagram, and all the conclusions that can be obtained are marked next to the diagram to facilitate the next application and use.

In this process, after marking the key points on the map, you can also use some tools and software, such as geometric sketchpad or drawing brain, to supplement the moving process of moving points, and hold some tools to help you find the moving law of key points.

According to the known correlation given by the moving point, the movement law of the moving point and the relationship between the distance, length, distance and time of the movement are obtained. Find the law of the moving point and the process trajectory of the movement, as well as the related quantities.

According to the time or distance in motion, or to set the quantity that has been used in the whole process, time and distance are commonly used, and some unknown constants are said at the beginning. Complete the transformation. The moving point is converted into the moving distance, the moving distance is converted into the related expression, and the expression is converted into the algebraic expression, and then the equations are established with the algebraic expression, thus solving the regularity problem of the key points.

Expand knowledge:

The fixed point problem is a classical geometric problem in junior one mathematics. The fixed point problem refers to a point moving along a specific path in a plane rectangular coordinate system, and the coordinates or specific properties of the point at a certain moment are found. In a word, to solve the moving point problem, we need to combine the knowledge of geometry, algebra and physics, use the right methods at the right time and cultivate flexible thinking.