Vectors and Dot Product

[jenniferd]

I am trying to express the vector with initial point P and terminal point Q in component form. Having issues because I have never did vectors before at all, and I need help. Now its a graph but I have to find the ponts of P,Q so the Q went across the coordinate graph and the P is below near the 2 coordiante. Please help me with this.

 

[mmm4444bot]

I am trying to express the vector with initial point P and terminal point Q in component form.

Having issues because I have never did vectors before at all

Why are you trying to do this? Is this an assignment for some math class?

I don't understand why you would receive such an assignment. :???:

If this is something that you really need to do, then you should start by looking up the definition of a vector. (Let us know, if you can't figure out the definition.)

 

[HallsofIvy]

Exactly what data are you given? I presume you know that if $\displaystyle P= (x_0, y_0, z_0)$ and $\displaystyle Q= (x_1, y_1, z_1)$ then the vector from P to Q is $\displaystyle (x_1- x_0)i+ (y_1- y_0)j+ (z_1- z_0)k$.