Math Problem Statement

Use the graph of the function y = g(x) shown below, to evaluate each of the following limits and function values.

Solution

The image shows a table where various limits and function values must be evaluated using the graph of y=g(x)y = g(x). Let's go through each part step by step based on the graph:

A. limx3g(x)\lim_{x \to -3} g(x)

  • From the graph, as xx approaches 3-3 from both the left and right, the function values approach 1.
  • Answer: 1

B. limx1g(x)\lim_{x \to -1} g(x)

  • As xx approaches 1-1 from both sides, the left limit approaches 4, but the right limit approaches -2.
  • Since the left and right limits do not match, the limit does not exist.
  • Answer: Does not exist

C. limx1+g(x)\lim_{x \to -1^+} g(x)

  • As xx approaches 1-1 from the right, the function approaches -2.
  • Answer: -2

D. g(1)g(-1)

  • The value of g(x)g(x) at x=1x = -1 is marked by a filled circle at (1,2)( -1, -2 ), meaning g(1)=2g(-1) = -2.
  • Answer: -2

E. limx1g(x)\lim_{x \to -1^-} g(x)

  • As xx approaches 1-1 from the left, the function approaches 4.
  • Answer: 4

F. limx4+g(x)\lim_{x \to 4^+} g(x)

  • As xx approaches 4 from the right, the function approaches 7-7.
  • Answer: -7

G. limx4g(x)\lim_{x \to 4^-} g(x)

  • As xx approaches 4 from the left, the function approaches 2-2.
  • Answer: -2

H. limx7g(x)\lim_{x \to 7} g(x)

  • As xx approaches 7 from both sides, the function approaches 7-7.
  • Answer: -7

J. g(7)g(7)

  • The value of g(x)g(x) at x=7x = 7 is marked by a filled circle at (7,7)( 7, -7 ), meaning g(7)=7g(7) = -7.
  • Answer: -7

K. limx2+g(x)\lim_{x \to 2^+} g(x)

  • As xx approaches 2 from the right, the function approaches 2-2.
  • Answer: -2

Would you like any further clarification or details?

Here are five related questions for practice:

  1. What is limx0g(x)\lim_{x \to 0} g(x) based on the graph?
  2. How does the function behave as x5x \to -5?
  3. What is g(2)g(2) according to the graph?
  4. Determine the left and right limits at x=5x = 5.
  5. What is the behavior of the graph as x8x \to 8?

Tip: Always compare the left-hand and right-hand limits to check if the overall limit exists at a given point.

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Math Problem Analysis

Mathematical Concepts

Limits
Piecewise Functions
Continuity

Formulas

Limit properties: lim x->a f(x)

Theorems

Definition of limits
One-sided limits
Discontinuities in functions

Suitable Grade Level

Grades 10-12