Question

If the vector below is multiplied by 2, what will be its end point?

Answer 1

Vector multiplied by constant (scalar number),the new vector

becomes k |a|. If k> 0, the same direction, k <0, the opposite direction

If we multiply vector A by 2 then the length becomes 2 times vector A and in the same direction

first point (-1,1)

end point after multiplied: 2(-1,1) ⇒(-2,2)