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What is the distance between the points -1 1 and 1 -1?
The distance between the points can be calculated by using the difference in the x coordinates, the difference in the y coordinates and Pythagoras. distance = sqrt((difference_in_x_coords)2 + difference_in_y_coords)2) So for the points (-1, 1) and (1, -1) the distance between them is: sqrt((-1 - 1)2 + (1 - -1)2) =sqrt(22 + 22) =sqrt(4 + 4) = sqrt(8) ~= 2.83
If three points are given then how do you prove that they are collinear?
0). Considering any TWO points, you can calculate the slope of the line between them like this: Slope = (difference between the y-values of the two points) divided by (difference between the x-values of the two points). Use this technique to examine your THREE points, like this: 1). Calculate the slope of the line between Point-2 and Point-1. 2). Calculate the slope of the line between Point-3 and Point-1. 3). If the two slopes are equal, then the three points all lie on the same line.
What is the distance between 1 and 2 on a number line?
The distance between two points on a number line is calculated by finding the absolute difference between their values. For the numbers 1 and 2, this is |2 - 1|, which equals 1. Therefore, the distance between 1 and 2 on a number line is 1 unit.
Why voltage is measured between 2 points?
because voltage is the 'electrical potential difference'. since a "difference" can only be evaluated between two points so is voltage :)
What are the distance formula were the two points are located on the coordinate plane?
(Distance between the points)2 = (difference of the two x-values)2 + (difference of the two y-values)2
