algebra math, 8th grade

If point A is located at (0, -8) and B is located at (4, -5), what is the distance between them?

A. 5
B. 6
C. 7
D. 8

I know I don't usually ask for just the answer (I generally give what I got) but this was due on the 6th! I was in the hospital for pneumonia, and I didn't realize how behind I was in algebra. Please, please help as soon as possible!!

asked by Tazia
  1. Please, please don't ban me. I just really need this. I'm panicking (I know, I'm such a suck-up), just please don't ban me. I'm not trying to cheat.

    posted by Tazia
  2. d =sqrt [ (y2-y1)^2 +(x2-x1)^2 ]

    d =sqrt [ (-5 +8)^2 +(4-0)^2 ]
    = sqrt [ 9+16 ]
    = sqrt 25

    posted by Damon
  3. Goodness, thank you.

    posted by Tazia
  4. You are welcome.
    However when in danger or in doubt
    SKETCH A PICTURE of it !

    posted by Damon
  5. If you had done it, you would have seen the right triangle immediately.

    posted by Damon

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