Question

What is the distance between `(7,3,4)` and `(3,9,-1)`?

Answer 1

Use the distance formula.

Explanation:

This is the distance formula: `sqrt((X2-X1)^2+(Y2-Y1)^2+(Z2-Z1)^2)`
In this case (7, 3, 4) is (X1, Y1, Z1) and (3, 9, -1) is (X2, Y2, Z2).
`sqrt((-4)^2+(6)^2+(-5)^2`
`sqrt((16+36+25))`
`sqrt(77)`
Answer is 8.78.