Question

the co-ordinates of point 'p' on a number line is -3. find the co-ordinates of point on the same number line which are 5 units away from 'p'​

Answer 1

Step-by-step explanation:

On the coordinate plane every point is named by an ordered pair. For points on the x-axis the pair is in the form (x, 0).

The two points are (a, 0) and (b, 0). If "d" is the distance between them:

d2 = (a - b)2 + (0 - 0)2

d2 = (a - b)2

Both sides are positive numbers. Yet a - b need not be a positive number (square a negative get a positive!).

Therefore d = |a - b|.

Answer 2

Answer:

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