robertos blog

Friday, January 30, 2009

"Transformations - Rotations"

We turn our paper when drawing rotations because for we could get a better prediction of the shape and for what number quadrant that the shape go to, For example, if the figure is in quadrant 2 at 180 degrees clockwise it will be in quadrant 4.The rotation will turn out good because when you play around with the paper you will know that spinning the paper had helped a lot.No it does not only change the location of the figure because it is going clockwise or counterclockwise by 90, 180, or 360.Rotation is different from reflection because reflection just reflect on the shape,For example if the figure is at quadrant 1 reflect on the x-axis it will be under the original shape and rotation is when you move by a degrees reflection does not move by a degrees. When you rotate a figure 90 degrees clockwise and the then rotate it again 90 degrees counterclockwise it will be in the same spot you was at before.If you rotate a figure 360 degrees you did not rotate nothing because 360 degrees is the same spot you at.The different of rotating a figure 180 counterclockwise or clockwise is that counterclockwise it is the opposite of clockwise and plus it is going back words and clockwise it is going forward just like a regular clock goes but they will be in the same location counterclockwise or clockwise it does not matter it will be in the same spot but only for 180 degrees. For example, if you at quadrant one if you move counterclockwise 180 degrees it will be at quadrant three but if go clockwise 180 degrees it will be at quadrant three it will be in the same location only 180 degrees but 90 degrees will be different!!!!!!!!!!!!!!!!!!!

Monday, January 26, 2009

Transformation - Reflections

Reflection is like a mirror because when you like at a mirror it will reflect but it will be different because if you look at a mirror and raise your left hand up it will look like if you had raise your right hand it is the opposite. Original figure an its reflection exactly equal distance from the line of symmetry because when you fold a paper into two squares the middle line is the line of symmetry so it will be located in a different spot it will just be turn over. Yes we could because with out the points there will be know such thing as a coordinate plane or shapes so we could find the image or the shape with only the points. We could find out witch one is a Transformation when we are looking at two figures by having a figure with a prime, so the original is a Transformation and the second figure is called a prime!!!!!!!!!!!!!!!!!!

Wednesday, January 14, 2009

"Transformations - Dilations"

It does change size and location because when you multiplied it will get larger and when you divide the figure will get smaller. When you zoom in a picture or any thing else it gets bigger and easier to see and if you zoom out it gets harder to see and it will be smaller to see It relates to dilation's because when you zoom in the figure is getting bigger just like Dilation a transformation that makes a figure with the same figure as the original but it is a little different. Figure undergoes a dilation with a scale factor of 1.5 the shape does get bigger because you multiplied 1.5 to the original coordinate points and the figure will be larger. Dilation's and Translations is the same because 1/3 is .3 repeating and you could divided it y three!!!!!!!!!!!!!!!

Monday, January 12, 2009

Transformation translation

I know when a figure is a transformations or a plane shape is by if a shape has a prime on the right side of a letter.for example r' and e' just like that. A change in spot size or a shape.When a shape is transformed , it will have a NEW coordinate points. The points will be called with an apostrophe ( or prime ).Translation is a point that is a shape that move the distance and in the same angle.No because the original shape always have to be the same. For ex if it is a triangle the next figure have to be a shape.By finding out were is located and then add or subtract the units is were it is located!!!!!!!!!!!!!!