If $\alpha$ is a scalar and $\vect{x}\in W$, is it always true that $\alpha\vect{x}\in W$? This is what we need to establish

If $\alpha$ is a scalar and $\vect{x}\in W$, is it always true that $\alpha\vect{x}\in W$? This is what we need to establish

We will examine the three requirements of

We will examine the three requirements of

First, $\zerovector\in\nsp{A}$, which can be inferred as a consequence of