Distance between points on a graph?

Question

What is the distance between A(-7, 3, 2) and B(1, 5, 1)?

1. 17
2. 11
3. Square root of 109
4. Square root of 69

And if you come in here and tell me to do my own work, you're getting reported for spamming.

Answer 1

sqrt((1 + 7)^2 + (5 - 3)^2 + (1 - 2)^2)
= sqrt(64 + 4 + 1)
= sqrt(69).
Answer 4.

Answer 2

x = -7 to 1 or 8 units
y = 3 to 5 or 2 units
z= 2 to 1 or 1 unit

Distance = sqrt(x^2 + y^2 + z^2)

D= sqrt(64+4+1) = sqrt(69) units long

Answer 3

REQd. distance=sqrt(64+4+1)=sqrt(69). OPtion 4.ANS