Math Problem Statement
Solution
To determine the scale factor and the center of dilation from the graph, we follow these steps:
1. Find the Scale Factor
The scale factor compares the distances from the center of dilation to a point on the preimage and the corresponding image points .
- First, identify the coordinates of points:
- and
- and
- and
- and
Now, calculate the distances between corresponding points:
By comparing the coordinates:
- From to :
- From to :
Thus, the scale factor is 2.
2. Find the Center of Dilation
The center of dilation is the point from which all the dilations are performed. To locate it:
- Draw lines connecting each preimage point to its corresponding image point .
- Extend these lines. The point where they intersect is the center of dilation.
From observation, the center of dilation is at the origin .
Final Answer:
- Scale factor:
- Center of dilation:
Do you need further clarification or help with any part of the solution? Let me know!
Related Questions:
- How do you determine the center of dilation algebraically?
- Can a scale factor be negative, and what does it represent?
- What happens to a figure when the scale factor is ?
- How does dilation affect angles and side ratios in a figure?
- If the scale factor were 3, what would happen to the coordinates of ?
Tip:
To confirm the center of dilation, always test multiple points and verify where the connecting lines intersect.
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Math Problem Analysis
Mathematical Concepts
Dilation
Transformations
Scale Factor
Center of Dilation
Formulas
Scale factor = distance to image point / distance to preimage point
Theorems
Properties of Dilations
Proportionality of Distances in Dilations
Suitable Grade Level
Grade 8-10