Math Problem Statement

Jika lengkungan jembatan tersebut kita misalkan suatu fungsi kuadrat y = -x^2, maka tentukan minimal 2 bentuk grafik fungsi tersebut dengan koordinat yang berbeda, selanjutnya transformasikan gambar grafik tersebut sesuai dengan aturan berikut.

Solution

The image presents a problem regarding the transformation of a quadratic function graph. Here's a breakdown of the tasks based on the image:

  1. Initial Graph: Start by sketching the quadratic function y=x2y = -x^2, which is a downward-opening parabola.

  2. Translation: Apply the translation defined by the vector (2,4)\left( -2, 4 \right). This moves the graph 2 units to the left and 4 units up.

  3. Reflection: Reflect the translated graph across the horizontal axis (x-axis). This changes the graph's orientation.

  4. Dilation: From the reflected graph, apply a dilation by a factor of 3 along the x-axis. This stretches the graph horizontally.

  5. Rotation: Rotate the resulting graph 90 degrees counterclockwise about the origin (0,0)(0, 0).

Would you like to go through each transformation with detailed explanations or a sketch of the graph?

Here are five related questions to further explore the concepts:

  1. What is the effect of translating a graph by the vector (2,4)(-2, 4)?
  2. How does reflection across the x-axis affect the function's graph?
  3. What changes occur when a graph is dilated by a factor of 3 along the x-axis?
  4. How would a rotation of 90° around the origin alter the graph's shape and orientation?
  5. How would the process differ if we rotated the graph by 90° clockwise instead?

Tip: For geometric transformations, always visualize how each step affects key points (like the vertex or intercepts) to ensure accuracy!

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Math Problem Analysis

Mathematical Concepts

Algebra
Quadratic Functions
Geometric Transformations

Formulas

Quadratic function y = -x^2
Translation formula (x', y') = (x + h, y + k)
Reflection across the x-axis: y = -f(x)
Dilation formula: x' = kx
Rotation by 90° formula: (x', y') = (-y, x)

Theorems

Transformation of Functions
Reflection Theorem
Dilation Theorem
Rotation Theorem

Suitable Grade Level

Grade 10-12