8.1+DILATIONS+AND+SCALE+FACTORS.+t

OBJECTIVES: 1.construct a dilation of a segment and a point by using a scale factor 2.construct a dilation of a closed plane figure


 * DEFINITIONS AND BLUE BOXES:
 * Dilation-** is an example of a transformation that is not rigid. Dilations preserve the shape of an object, but they may change its size. A dilation of a point in a coordinate plane can be found by multiplying the x- and y- coordinates of a point by the same number, n. D(x, y) = (nx, ny)


 * Scale Factor-** The number //n// is called the scale factoer of the transformation

If there is the coordinates on a graph that are ( 6, 2 ) and ( 3, 1 ) you were trying to find the scale factor. So the scale factor would be 2 because you would take 3 * 2 and that equals 6 and then you would take 2 * 1 and that would be 2 so the scale factor would be 2 because you multiplied both by 2 to get the answer.
 * Example:**