Question

Transformations
I need help on this worksheet please.

Answer 1

Explanation:

Question 2

As far as I can see, you got it right. The general transformation for 90 ccw is

(x,y) ===> (-y, x)

What that means is for the x you put in -y changing the sign to the opposite and for the y you put in x and this time you leave the sign alone . The transformation is shown in the left hand diagram.

The two tables are shown below.

Original

• (1,4)
• (1,2)
• (3,2)
• (3,5)

The transformed table is

• (-4,1)
• (-2,1)
• (-2,3)
• (-5,3)
• (-4,1) This is just to let the program know to close the figure For some reason this did not have lines and if I delete it and put the lines in, I won't be able to upload the new diagram.

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Four

This one transforms from (x,y) to (-x,-y) which means where you see an x, you put a - x and where you see a y, you put a minus y. It is the middle frame.

Original

• (-4,3)
• (0,3)
• (-2,0)
• (-4,3) Here again, this is just to close the figure.

The transformed figure in red I think is

• (4,-3)
• (0,-3
• (2,0)
• (4,-3) And this closes the figure as well.

==========

Six

The diagram is on the right

Reflection about the y axis. Here the transformation is (x,y) ====> (-x,y) notice the ys don't change.

• (-3,0)
• (-5,-2)
• (-1,-2)

There is no closure.

Reflection

• (3,0)
• (5,-2)
• (1,-2)