4) Where is the function g(x) = 3x2 -x+ 5 differentiable?

Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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**Problem 4: Differentiability of the Function**

**Question:** Where is the function \( g(x) = 3x^2 - x + 5 \) differentiable?

**Explanation:**
The function \( g(x) = 3x^2 - x + 5 \) is a polynomial. Polynomial functions are differentiable everywhere on their domain, which is the entire set of real numbers \( \mathbb{R} \). Therefore, the function is differentiable for all \( x \in \mathbb{R} \).

*Key Concept:* Polynomials are smooth functions without any breaks, corners, or cusps, and thus are differentiable at all points on the real number line.
Transcribed Image Text:**Problem 4: Differentiability of the Function** **Question:** Where is the function \( g(x) = 3x^2 - x + 5 \) differentiable? **Explanation:** The function \( g(x) = 3x^2 - x + 5 \) is a polynomial. Polynomial functions are differentiable everywhere on their domain, which is the entire set of real numbers \( \mathbb{R} \). Therefore, the function is differentiable for all \( x \in \mathbb{R} \). *Key Concept:* Polynomials are smooth functions without any breaks, corners, or cusps, and thus are differentiable at all points on the real number line.
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