Question 218326
I'm assuming that *[Tex \LARGE \vec{w}] is a vector (if so, it's an bad choice of notation).


*[Tex \LARGE -3\vec{w}=-3\left{6, -4\right}=\left{-3\cdot(6), -3\cdot(-4)\right}=\left{-18, 12\right}]


So *[Tex \LARGE -3\vec{w}=\left{-18, 12\right}]