Question

Enlarge the triangle by scale factor -2, using point (8,8) as the centre of enlargement

(please hurry 15 points)

Answer 1

I understand you probably don't need this anymore but here is the answer anyway.

Explanation:

So what you want to do is draw a line from a corner to the centre of enlargement (I'll use the one at (9, 10) ). Then you see that it take 2 boxes to get to that, keep the line going through for double as much as it took to reach the centre of enlargement, this is because the scale factor is two. Do this for every corner, going through the centre of enlargement for the double the length it took to get to it (plot a cross at each bit you end up). Finally, remove the lines you used and connect the crosses. This method may be a bit confusing and someone who understands it more than me would probably explain what the minus means, if I explain it will probably make this more confusing. Hope this Helps!

Answer 2

you need to draw a line from each corner of the triangle to the dot at 8,8 to start