Math Problem Statement

g={(-1,-2),(0,1),(5,16),(7,22),(10,31)}. determine f=g(x-5)-3 as a set of ordered pairs

Solution

To determine the function f=g(x5)3f = g(x - 5) - 3 as a set of ordered pairs, we'll follow these steps:

Step-by-Step Process:

  1. Understand the transformation:

    • The function f(x)f(x) is a transformation of g(x)g(x).
    • g(x5)g(x-5) means that we take the input xx, shift it by 5 to the right, and then evaluate it using the given points in gg.
    • After calculating g(x5)g(x-5), we subtract 3 from the result to get f(x)f(x).
  2. Given points in gg:

    • g={(1,2),(0,1),(5,16),(7,22),(10,31)}g = \{(-1, -2), (0, 1), (5, 16), (7, 22), (10, 31)\}.

    This means g(1)=2g(-1) = -2, g(0)=1g(0) = 1, g(5)=16g(5) = 16, g(7)=22g(7) = 22, and g(10)=31g(10) = 31.

  3. Apply the transformation f=g(x5)3f = g(x-5) - 3:

    We need to find f(x)f(x) for the points corresponding to these transformations:

    • For each point in gg, we solve for f(x)f(x) by finding xx such that g(x5)=g(y)g(x-5) = g(y), where y=x5y = x - 5.

Now calculate the new points:

  1. f(4)=g(45)3=g(1)3=23=5f(4) = g(4-5) - 3 = g(-1) - 3 = -2 - 3 = -5

    • So, one point is (4,5)(4, -5).
  2. f(5)=g(55)3=g(0)3=13=2f(5) = g(5-5) - 3 = g(0) - 3 = 1 - 3 = -2

    • So, one point is (5,2)(5, -2).
  3. f(10)=g(105)3=g(5)3=163=13f(10) = g(10-5) - 3 = g(5) - 3 = 16 - 3 = 13

    • So, one point is (10,13)(10, 13).
  4. f(12)=g(125)3=g(7)3=223=19f(12) = g(12-5) - 3 = g(7) - 3 = 22 - 3 = 19

    • So, one point is (12,19)(12, 19).
  5. f(15)=g(155)3=g(10)3=313=28f(15) = g(15-5) - 3 = g(10) - 3 = 31 - 3 = 28

    • So, one point is (15,28)(15, 28).

Final set of ordered pairs for ff:

f={(4,5),(5,2),(10,13),(12,19),(15,28)}f = \{(4, -5), (5, -2), (10, 13), (12, 19), (15, 28)\}


Would you like further details or explanations on any step?

Here are 5 related questions to expand your understanding:

  1. How does shifting a function horizontally affect its graph?
  2. How would the function change if the transformation was g(x+5)g(x+5) instead of g(x5)g(x-5)?
  3. What happens when you add or subtract constants from a function's output?
  4. How can you determine the inverse of a function?
  5. What is the geometric interpretation of the transformation applied to g(x)g(x)?

Tip: Always remember, shifting xx horizontally is linked to the opposite direction of the sign inside the parentheses. g(x5)g(x-5) shifts to the right, and g(x+5)g(x+5) shifts to the left.

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Math Problem Analysis

Mathematical Concepts

Function Transformation
Algebra
Ordered Pairs

Formulas

f(x) = g(x - 5) - 3
g = {(-1, -2), (0, 1), (5, 16), (7, 22), (10, 31)}

Theorems

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Suitable Grade Level

Grades 9-11