HKDSE-MATH - 2021 - Paper 2 -

Ans: C

Let $Q=(x,y)$. Denote the orthocentre by $H$. Since $

Ans: (a) $S’=(5,12)$, $T’=(-3,7)$ (b) $\dfr

Ans: D

Note that the rectangular coordinates of the image $Q

Ans: A

Note that the coordinates of the circumcentre are $\l

Ans: (a) $G=\left(25,\dfrac{t^2-126}{t}\right)$, $H=\

Ans: C

Denote the image of $P$ by $P’$.

Note that the re