Question

the coordinatoes of two points,p andQ are x and y.find d(pQ)in the following case:x= -8 y= -9​

Answer 1

Answer:

It is new method of representing distance between two points P and Q and in future very important in coordinate gerometry.

Now, let P(x, y) be any point in the first quadrant. We have

The graph is given in adjoining figure.

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