Math Problem Statement

Graph the image of △FGH after a dilation with a scale factor of 2, centered at the origin.

Graph the image of △FGH after a dilation with a scale factor of 2, centered at the origin.

Solution

To solve this problem, we need to apply a dilation with a scale factor of 2, centered at the origin, to the vertices of triangle ΔFGH\Delta FGH.

  1. Original coordinates:

    • F(4,4)F(-4, 4)
    • G(4,4)G(4, 4)
    • H(0,4)H(0, -4)
  2. Dilating each point by a factor of 2: For dilation centered at the origin, each coordinate of a point is multiplied by the scale factor.

    • F=(4×2,4×2)=(8,8)F' = (-4 \times 2, 4 \times 2) = (-8, 8)
    • G=(4×2,4×2)=(8,8)G' = (4 \times 2, 4 \times 2) = (8, 8)
    • H=(0×2,4×2)=(0,8)H' = (0 \times 2, -4 \times 2) = (0, -8)
  3. New coordinates after dilation:

    • F(8,8)F'(-8, 8)
    • G(8,8)G'(8, 8)
    • H(0,8)H'(0, -8)

To graph the dilated triangle, you would plot the new points F(8,8)F'(-8, 8), G(8,8)G'(8, 8), and H(0,8)H'(0, -8) on the graph and connect them to form the new image of triangle ΔFGH\Delta FGH.

Would you like further details or assistance in graphing this?

Here are 5 related questions:

  1. How do you determine the center of dilation in any transformation?
  2. What happens to the size of a shape after a dilation with a scale factor greater than 1?
  3. How do you apply a dilation to shapes not centered at the origin?
  4. Can you describe the difference between dilation and translation?
  5. How would a dilation with a fractional scale factor affect the triangle?

Tip: When performing dilations, always multiply both the x- and y-coordinates of each point by the scale factor to get the image coordinates.

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Math Problem Analysis

Mathematical Concepts

Geometry
Transformations
Dilations
Coordinate Plane

Formulas

Dilation formula: (x, y) → (kx, ky), where k is the scale factor

Theorems

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Suitable Grade Level

Grade 8