1
$\begingroup$

Translate $\Delta PQR$ with vertices $P(2, 4, -7), Q(3, 7, 18), R(-5, 12, 8)$ by $(-3, 2, 5)$. This is my question , it came in our test and I am afraid to come in the final exam so kindly, I want to know how to solve such questions, our lecturer tough us only about $2D$ and he did not teach us about $3D$ so I understand $2D$ but I could not understand $3D$ . Please, can you explain the solution step by step because I want to know how you solve it?

Thank in advance!

  • 2
    Just add the corresponding coordinates. So $P$ becomes $(2,4,-7)+(-3,2,5) = (2+(-3),4+2,-7+5) = (-1,6,-2)$. Repeat for $Q,R$.2012-11-02

1 Answers 1