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Consider the parabola ( 3) 82y x= + − . Sketch this parabola. What is the equation of theimage if it is:a translated 8 units up and 3 units to the right?

Question

Consider the parabola

(3)y=82x+(3)y = 82x + -
Sketch this parabola. What is the equation of the image if it is:

  • a translated 8 units up and 3 units to the right?
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Solution

1. Break Down the Problem

  1. Identify the given equation of the parabola: y=13(x8)22 y = \frac{1}{3}(x - 8)^2 - 2 .
  2. Determine the changes applied to the parabola: a translation of 8 units up and 3 units to the right.

2. Relevant Concepts

  • To translate a parabola:
    • A translation of h h units to the right is performed by replacing x x with xh x - h .
    • A translation of k k units up is performed by adding k k to y y .

3. Analysis and Detail

  1. Original Equation: y=13(x8)22 y = \frac{1}{3}(x - 8)^2 - 2

  2. Translation 3 Units to the Right: Replace x x with x3 x - 3 : y=13((x3)8)22=13(x11)22 y = \frac{1}{3}((x - 3) - 8)^2 - 2 = \frac{1}{3}(x - 11)^2 - 2

  3. Translation 8 Units Up: Add 8 to the entire equation: y=13(x11)22+8=13(x11)2+6 y = \frac{1}{3}(x - 11)^2 - 2 + 8 = \frac{1}{3}(x - 11)^2 + 6

4. Verify and Summarize

  • The new expression for y y after translating the parabola is: y=13(x11)2+6 y = \frac{1}{3}(x - 11)^2 + 6

Final Answer

The equation of the translated parabola is: y=13(x11)2+6 y = \frac{1}{3}(x - 11)^2 + 6

This problem has been solved

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