Thread: Distance formula

I have to find the distance for the the points -1,1 at 135 degrees. (Find the distance d from the origin to that point) Using the distance formula, I am getting a 0. Is this correct?

It should be obvious that the distance between the point (1,1) and (0,0) is not 0. The formula for distance betwen points A and B is:



Here point A is and point B is .

so 2 squared then?

Not 2 squared, but square root of 2.

Originally Posted by goldbug78

so 2 squared then?

Please tell us what "I have to find the distance for the the points -1,1 at 135 degrees." means.

What does have to do with any of this?

Originally Posted by Plato

What does have to do with any of this?

I think the OP is just saying that a line from the origin to the point (-1,1) is at an angle of 135 degrees from the +x axis. I considered it extraneous information.