Question

 Начертите координатный луч и отметьте на нем точки А(3); О(0); В(7); Е(1); С(10).На этом же луче отметьте точки,которые удалены от точки В: а) на 2 единичных отрезка; б) на 8 единичных отрезков.Найдите координкаты этих точек.

Answer 1

Решение во вложении снизу.

Answer 2

Drawing the Coordinate Ray and Marking the Points

To answer your question, let's start by drawing the coordinate ray and marking the given points on it. The coordinate ray is a straight line that extends infinitely in both directions. We will mark the points A(3), O(0), B(7), E(1), and C(10) on this ray.

Here is the coordinate ray with the marked points:

<---------------------------------------------------->
... -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 ...
                      E(1) O(0) A(3) B(7) C(10)

Marking Points on the Coordinate Ray

Now, let's mark the points that are a certain distance away from point B on the same coordinate ray.

a) Points 2 units away from point B: To find the points that are 2 units away from point B, we need to mark two points on the coordinate ray, each 2 units away from point B in opposite directions.

Let's mark these points as D1 and D2:

<---------------------------------------------------->
... -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 ...
                      E(1) O(0) A(3) D1(5) B(7) D2(9) C(10)

b) Points 8 units away from point B: Similarly, to find the points that are 8 units away from point B, we need to mark two points on the coordinate ray, each 8 units away from point B in opposite directions.

Let's mark these points as F1 and F2:

<---------------------------------------------------->
... -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 ...
                      E(1) O(0) A(3) D1(5) B(7) D2(9) F1(15) F2(-1) C(10)

Coordinates of the Marked Points

Now, let's find the coordinates of the marked points.

The coordinates of the points are as follows:

- Point A(3) - Point O(0) - Point B(7) - Point E(1) - Point C(10) - Point D1(5) - Point D2(9) - Point F1(15) - Point F2(-1)

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