Math Problem Statement

What are the coordinates of the image of L for a dilation with center (0, 0) and scale factor 4?

Solution

The question asks for the coordinates of the image of point L(2,5)L(-2, 5) after a dilation with a center at (0,0)(0, 0) and a scale factor of 4.

To solve this:

  1. The formula for dilation with a center at the origin is (x,y)=(kx,ky)(x', y') = (kx, ky), where kk is the scale factor, and (x,y)(x, y) are the original coordinates.

  2. For point L(2,5)L(-2, 5):

    • Apply the scale factor of 4 to the xx- and yy-coordinates: x=4×(2)=8x' = 4 \times (-2) = -8 y=4×5=20y' = 4 \times 5 = 20 So, the new coordinates of the image of LL are (8,20)(-8, 20).

This would be the image of point LL after the dilation.

Would you like more details or have any questions?

Here are 5 related questions to consider:

  1. How do you apply a dilation to points not centered at the origin?
  2. What happens to the distance between points after a dilation with a certain scale factor?
  3. How does a dilation affect the slope of a line?
  4. What would happen if the scale factor was less than 1?
  5. How would the dilation change if the center of dilation were not the origin?

Tip: When dilating points, always multiply both the xx- and yy-coordinates by the scale factor, and ensure the center of dilation is taken into account.

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Math Problem Analysis

Mathematical Concepts

Geometry
Transformations
Dilations

Formulas

(x', y') = (kx, ky)

Theorems

Dilation Theorem

Suitable Grade Level

Grades 8-10