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#1 2007-01-10 11:29:49
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Hoemwork!!!!!!!!!!!!
Rotate the figure 180 degrees around the origin. The coordinate plane is marked off by 10s. Write down one ordered pair that makes up one of the vertex points of the figure. Record it as point A. After you have rotated the figure 180 degrees, record the ordered pair for A prime.
A_____________ A___________
Help please
#2 2007-01-10 15:19:46
- John E. Franklin
- Member
- Registered: 2005-08-29
- Posts: 3,588
Re: Hoemwork!!!!!!!!!!!!
Simply take your coordinates and subtract them from zero.
Same as multiplying by negative one.
So (3,-5) goes to (-3,5).
And (10,11) goes to (-10,-11).
This performs your half turn around the origin.
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