Math Problem Statement

Given that the domain of the function f(x) is [-4, 2] and the range of f(x) is [-2, 6]. A graph of f(x) is shown. If the new function h(x) = f(x + 5) is formed, which of the following describes the domain and range of h(x)?

Solution

Let's analyze the problem step by step.

The given function f(x)f(x) has:

  • Domain: [4,2][-4, 2]
  • Range: [2,6][-2, 6]

When we form the new function h(x)=f(x+5)h(x) = f(x + 5), the input shift by +5+5 affects the domain but does not alter the range. Here's why:

  1. Domain of h(x)h(x):

    • Since h(x)=f(x+5)h(x) = f(x+5), the input x+5x+5 must lie in the domain of f(x)f(x), which is [4,2][-4, 2].
    • Solving for xx, we subtract 5 from each side: 4x+52    9x3-4 \leq x+5 \leq 2 \quad \implies \quad -9 \leq x \leq -3
    • Therefore, the domain of h(x)h(x) is [9,3][-9, -3].
  2. Range of h(x)h(x):

    • The range of h(x)h(x) is the same as the range of f(x)f(x), since shifting xx horizontally does not affect the vertical output.
    • Thus, the range of h(x)h(x) is [2,6][-2, 6].

Correct Option:

The correct choice is: Domain of hh: [9,3][-9, -3]; Range of hh: [2,6][-2, 6].


Would you like a detailed explanation of any part? Here are related questions to expand understanding:

  1. What happens to the domain and range if x+5x+5 becomes x5x-5?
  2. How does horizontal shifting affect the graph of a function in general?
  3. Can the range of a function change under transformations, and why?
  4. How would the domain and range change if h(x)=2f(x+5)h(x) = 2f(x+5)?
  5. Can we determine the new graph of h(x)h(x) without calculating points explicitly?

Tip: Shifting a function horizontally by x+cx+c adjusts the domain, but the range stays the same unless there are additional vertical transformations.

Ask a new question for Free

By Image

Drop file here or Click Here to upload

Math Problem Analysis

Mathematical Concepts

Functions
Domain and Range
Horizontal Shifts in Functions

Formulas

h(x) = f(x + c): Horizontal shift of the function

Theorems

Domain and Range transformations under shifts

Suitable Grade Level

Grades 9-12