TransformationsIB MYP Maths Extended: Flashcards

What these 14 flashcards ask

Object and image?
Which transformations give a congruent image?
Translate (1,4) by 3 right and 2 down.
What do you need to describe a reflection?
Reflection of (x,y) in the x-axis?
Reflection of (x,y) in the line y=x?
Reflect (1,1) in the line x=5.
What three details describe a rotation?
90^\circ anticlockwise about the origin: (x,y)\to?
180^\circ about the origin: (x,y)\to?
What two details describe an enlargement?
Enlarge (3,2) with scale factor 3, centre the origin.
How do you find a centre of rotation?
Where is the centre of a 180^\circ rotation?

Exam questions on Transformations

Triangle $T$ has vertices $A(1,1)$ , $B(4,1)$ and $C(4,3)$ on a coordinate grid.
$T$ is reflected in the $x$ -axis to give triangle $T_1$ . Find the coordinates of the vertices of $T_1$ .2 marks
The point $M(3,2)$ is plotted on a coordinate grid. The origin is $O$ .
$M$ is rotated $180^\circ$ about the point $(1,1)$ . Find the coordinates of the image of $M$ .2 marks
Triangle $A$ has vertices $(1,1)$ , $(3,1)$ and $(3,2)$ on a coordinate grid.
Triangle $B$ is the image of $A$ after an enlargement with scale factor $3$ and centre $(0,0)$ . Find the coordinates of the vertices of $B$ .3 marks

Written by the Exaim team, led by Shaun Daswani (Head of Upper Secondary, Improve ME Institute; MSc Financial Mathematics, Imperial College London; BSc, UCL) and Jason Daswani (operational lead, Improve ME Institute; LSE).