Question

Постройте координатный луч с единичным отрезком длиной 2 см. Отметьте на нем точки А(2), В(4), С(7).

Answer 1

Вот. Нас так учили в школе.

Answer 2

Building a Coordinate Ray

To build a coordinate ray with a unit length of 2 cm, we will start at the origin (0,0) and extend the ray in the positive direction of the x-axis. We will mark the points A(2), B(4), and C(7) on this ray.

Here's how we can construct the coordinate ray:

1. Start by drawing a horizontal line segment of length 2 cm from the origin (0,0) towards the right side of the coordinate plane. This line segment represents the positive x-axis.

2. Mark the point A(2) on the ray, which is 2 cm away from the origin. This point represents the value 2 on the x-axis.

3. Continue extending the ray by another 2 cm to the right, marking the point B(4) on the ray. This point represents the value 4 on the x-axis.

4. Finally, extend the ray by an additional 3 cm to the right, marking the point C(7) on the ray. This point represents the value 7 on the x-axis.

The resulting coordinate ray with the marked points A(2), B(4), and C(7) would look like this:

0------------------A------------------B------------------C

Please note that the lengths of the line segments and the positions of the points are not drawn to scale in this text-based representation. The actual length of the line segment representing the positive x-axis is 2 cm, and the distances between the points A, B, and C are also measured in centimeters.

I hope this helps! Let me know if you have any further questions.