SOLUTION: Find K so that the vectors [4,-3] and [k,-6] (a) point in the same direction (b) are perpendicular

Question 147049: Find K so that the vectors [4,-3] and [k,-6] (a) point in the same direction
(b) are perpendicular
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
a)Point in the same direction means the vectors are scaled versions of each other.
In other words, the x components are in the same proportion as the y components.

b)Perpendicular vectors have a dot product equal to zero.
A:[4,-3]
B:[k,-6]

Graphical check of the answer.
RELATED QUESTIONS
The vectors (-4, 10) and (k, 14) are perpendicular. Find the value of... (answered by josgarithmetic)

show that the vectors a=2i+3j-k and b=3i-j+3k are... (answered by Alan3354)

Find k so that the line through (2, -3) and (k,2) is: a. parallel to 3x+4y=8 b.... (answered by math_tutor2020)

Evening All. Struggling on this vectors problem. i)If a and b are perpendicular, (answered by Edwin McCravy)

The vectors are shown as the x and y on top of each other but since I can�t type it out... (answered by ikleyn)

Find k so that the line through (4,-1) and (k,2) is a. parallel to 2x + 3y = 6 b.... (answered by Alan3354)

Find the value of k for which the two vectors A=(2, -1, k, 5) and B=(-2, 0, 3, k) are... (answered by greenestamps)

Q: Find the constant k so that the perpendicular bisector of the line segment with end... (answered by Boreal,ikleyn)

find k so that the line thru (4,-1) and (k,2)is a). parallel to 2x+3y=6 b).... (answered by edjones)