Calculate the distance between points A (2,3) and B (-5,1).

To calculate the distance between two points A(x1, y1) and B(x2, y2), you can use the distance formula:

Distance = √((x2 - x1)^2 + (y2 - y1)^2)

In this case, the coordinates of point A are (2,3) and the coordinates of point B are (-5,1).

Plugging the values into the formula:

Distance = √((-5 - 2)^2 + (1 - 3)^2)
Distance = √((-7)^2 + (-2)^2)
Distance = √(49 + 4)
Distance = √53

Therefore, the distance between points A (2,3) and B (-5,1) is √53 units.

The distance between two points (x1, y1) and (x2, y2) is given by the formula:

$$d = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}$$

Using this formula, the distance between points A (2,3) and B (-5,1) is:

$$d = \sqrt{(-5 - 2)^2 + (1 - 3)^2}$$

$$d = \sqrt{(-7)^2 + (-2)^2}$$

$$d = \sqrt{49 + 4}$$

$$d = \sqrt{53}$$

$$d \approx 7.28$$

Therefore, the distance between points A (2,3) and B (-5,1) is approximately 7.28 units.

Which one of the following relation are also a function