[SOLVED] Ibv9 The triangle ABC is defined by the following vectors

[karush]

View attachment 1227
this is best I can figure for the triangle (shaded)
but \(\displaystyle \vec{OC}\) looks like it has decimals in it.
View attachment 1226

 

[Ackbach]

Good picture, I think. Can you write down the $x$-component of $OC$ immediately? If so, can you think of a way, maybe, to write down an equation governing where the $y$-component must be?

 

[karush]

At $x=2, y=\frac{13}{4}$

 

[Ackbach]

At $x=2, y=\frac{13}{4}$

You've got it, except for notation. $OC=?$

 

[karush]

You've got it, except for notation. $OC=?$

\(\displaystyle \vec{OC} = \pmatrix{2 \\ 3.25}\)

 

[Ackbach]

\(\displaystyle \vec{OC} = \pmatrix{2 \\ 3.25}\)