Question

Изобразите число b точкой координатной прямой, если: а) b=3 б) -b = +4 в) b = -2 г) -b = -5

Answer 1

Надеюсь тут понятно....

Answer 2

a) b = 3

To represent the number b = 3 on a coordinate axis, we can draw a point on the number line at position 3. The number line is a horizontal line where each point corresponds to a number. The point representing b = 3 will be located 3 units to the right of the origin (0).

Here is a visual representation:

-5  -4  -3  -2  -1   0   1   2   3   4   5
---------------------------------------
                    ●

The point marked with a ● represents the number b = 3.

б) -b = 4

In this case, we have -b = 4. This equation means that the negative of b is equal to 4. To find the value of b, we need to solve for b.

To isolate b, we can multiply both sides of the equation by -1:

-1 * (-b) = -1 * 4
b = -4

So, b = -4. To represent this number on a coordinate axis, we can draw a point on the number line at position -4. The point representing b = -4 will be located 4 units to the left of the origin (0).

Here is a visual representation:

-5  -4  -3  -2  -1   0   1   2   3   4   5
---------------------------------------
                                     ●

The point marked with a ● represents the number b = -4.

в) b = -2

To represent the number b = -2 on a coordinate axis, we can draw a point on the number line at position -2. The point representing b = -2 will be located 2 units to the left of the origin (0).

Here is a visual representation:

-5  -4  -3  -2  -1   0   1   2   3   4   5
---------------------------------------
                            ●

The point marked with a ● represents the number b = -2.

г) -b = -5

In this case, we have -b = -5. To solve for b, we can multiply both sides of the equation by -1:

-1 * (-b) = -1 * (-5)
b = 5

So, b = 5. To represent this number on a coordinate axis, we can draw a point on the number line at position 5. The point representing b = 5 will be located 5 units to the right of the origin (0).

Here is a visual representation:

-5  -4  -3  -2  -1   0   1   2   3   4   5
---------------------------------------
                                        ●

The point marked with a ● represents the number b = 5.

I hope this clarifies how to represent the given numbers b on a coordinate axis! Let me know if you have any further questions.