Math Problem Statement

range of f(x)= (x+4) cubed - 5

Solution

The given function is:

f(x)=(x+4)35f(x) = (x + 4)^3 - 5

To find the range, let's analyze the function step-by-step:

  1. The expression (x+4)3(x + 4)^3 represents a cubic function, which has a domain of all real numbers (R\mathbb{R}) and a range of all real numbers (R\mathbb{R}) because cubic functions increase without bound in both directions.

  2. Shifting this cubic function by 4 units to the left (x+4x + 4) does not affect the range, so the range of (x+4)3(x + 4)^3 is still all real numbers.

  3. The next step is the subtraction of 5. Subtracting a constant shifts the entire graph down by 5 units. Thus, the range of f(x)f(x) is also all real numbers (R\mathbb{R}).

Therefore, the range of the function f(x)=(x+4)35f(x) = (x + 4)^3 - 5 is:

Range of f(x)=(,)\text{Range of } f(x) = (-\infty, \infty)

Would you like more details or further explanations?

Here are 5 related questions:

  1. What is the domain of a cubic function?
  2. How do transformations affect the graph of a cubic function?
  3. How would adding or subtracting a constant inside the cube affect the range?
  4. Can a cubic function have a limited range?
  5. What are the key points to consider when graphing a cubic function?

Tip: Cubic functions are always increasing or decreasing, which means they have no maximum or minimum points.

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Math Problem Analysis

Mathematical Concepts

Algebra
Cubic Functions
Function Transformations

Formulas

f(x) = (x + 4)^3 - 5

Theorems

Cubic function behavior (range and transformations)

Suitable Grade Level

Grades 10-12