Question

Find the value of m that makes the two vectors parallel and perpendicular <2m,10>, <-3,6>

Answer 1

they are perp if the dot product is 0

so

2m(-3)+10*6 = 0

solve for m

Answer 2

there is a similar property with cross product and parallel...

Answer 3

thank you! it makes more sense that way.

Answer 4

what do I make it equal to to find parallel?

Answer 5

for parllel slope will be eqaul

-(10)/2m = -(6/-3)

-5/2 = m
m = -2.5