What polynomial has roots 3, 7, and −2? What polynomial has roots 2, 4i, and −4i?
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Answer:
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Explanation:
The fraction 1/4 is equivalent to the decimal form 0.25
We multiply 0.25 with each coordinate, of each point.
For example, let's focus on point L which is at (2,-1)
- x = 2 becomes x = 0.25*2 = 0.5
- y = -1 becomes y = 0.25*(-1) = -0.25
Point L(2,-1) moves to L ' (0.5, -0.25) which will move it closer to the origin, which shrinks the image. Use this idea for the remaining points.
Note: this trick only works if the center of dilation is the origin.