Maths HELP with ENLARGEMENTS!!!?

Question

Where do i plot my negative enlargements?
I have the question:
A) scale factor 1/3, about (6,2). B) Scale factor 1/2 about (6-9)
the shape for A is a 8 Sides letter T and the shape for B is a triangle...right angled one.
I really don't know how to start drawing my enlargement...where do i plot the points on the graph i'm really confused.

Answer 1

We would need to know more about the specifics of the current vertices of your shapes and where they are positioned.

A scale factor of 1/3 around the point (6,2) would mean that each point on the shape would have a distance that is 1/3 of the original distance from (6,2).

For example, let's say one of the points was (12,5). The offset here is +6 for the x coordinate and +3 for the y coordinate.

Scaling by 1/3 (by multiplying by 1/3) you get +2 and +1, respectively. So the scaled point would now be at (6+2, 2+1) = (8, 3).

Do the same with your other points, connect the lines and you'll have your scaled shape. The method is the same for problem A and B.

Answer 2

Any center of growth will do. go with a factor P (everywhere) and think you desire to amplify the triangle ABC via area of three. connect P to A and enhance it to A' the place PA' = 3PA, then PB'=3PB and workstation'=3PC. The triangle A'B'C' is the mandatory triangle. You have been asked in basic terms to amplify the discern so that's everywhere on the paper.