Consider the vector v between (-4,-4,-4) and (6,7,1). What vector has the same direction as vector v, but has length 3?



Asked on

1 Answer | Add Yours

mlehuzzah's profile pic

Posted on (Answer #1)

The vector being described here is <10,11,5>

6-(-4)=10, 7-(-4)=11, 1-(-4)=5

Its length is:


We want a vector in the same direction, so we multiply each entry by the same positive number.  We want the length to go from 15.68 to 3, so we multiply by `3/sqrt(246)~~.191273014`

Thus, the vector we want is




We’ve answered 287,815 questions. We can answer yours, too.

Ask a question