Math Problem Statement

The following function is graphed in a window such that hidden behavior is not evident. Find an appropriate viewing window and locate the extreme points on the graph of the function.     y equals one third x cubed minus five halves x squared plus 6 x minus 4 . . . Question content area right Part 1 Determine an appropriate window for the following graph.

A graphing utility screen has a viewing rectangle that contains a horizontal axis with 10 equally spaced tick marks on either side of the vertical axis and a vertical axis with 10 equally spaced tick marks on either side of the horizontal axis. From left to right, assuming that tick marks appear in increments of 1 on both axes, the function rises at a decreasing from the bottom of the viewing rectangle at (negative 1, negative 10) to (2, 0.7), falls to (3, 0.5), and rises to the top of the viewing rectangle at (5.5, 10). The function intersects the horizontal axis at (1, 0). All coordinates are approximate.   ​[minus​10,10] by ​[minus​10,10]   Xsclequals1       Ysclequals1 A.left bracket 0 comma 5 right bracket by left bracket 0 comma 2 right bracket left bracket 0 comma 5 right bracket by left bracket 0 comma 2 right bracket B.left bracket 0 comma 5 right bracket by left bracket negative 20 comma 20 right bracket left bracket 0 comma 5 right bracket by left bracket negative 20 comma 20 right bracket C.left bracket negative 10 comma 10 right bracket by left bracket negative 10 comma 10 right bracket left bracket negative 10 comma 10 right bracket by left bracket negative 10 comma 10 right bracket D.left bracket 0 comma 4 right bracket by left bracket 0 comma 4 right bracket left bracket 0 comma 4 right bracket by left bracket 0 comma 4 right bracket

Solution

To determine an appropriate viewing window for the graph of the function y=13x352x2+6x4y = \frac{1}{3} x^3 - \frac{5}{2} x^2 + 6x - 4, we need to consider both the function's behavior and the provided information in the question.

Key Information:

  • The function has an intersection at (1,0)(1, 0).
  • It rises from (1,10)(-1, -10) to (2,0.7)(2, 0.7), then falls to (3,0.5)(3, 0.5), and finally rises to (5.5,10)(5.5, 10).
  • The window you are looking for should contain this range and also give enough space to observe the critical points and behavior of the function.

Step-by-Step Evaluation:

  1. X-Values: Based on the provided description, the function is rising and falling between x=1x = -1 to x=5.5x = 5.5, so we want to make sure that the viewing window in the xx-direction (horizontal axis) covers this range. An appropriate range for the xx-axis could be from x=0x = 0 to x=5x = 5.

  2. Y-Values: From the points described, the yy-values vary from approximately 10-10 at x=1x = -1 to around 1010 at x=5.5x = 5.5. Therefore, we want the yy-axis to range from y=20y = -20 to y=20y = 20 to comfortably include all critical values and behavior.

Conclusion:

The most appropriate window is Option B, which covers the range for xx from 00 to 55 and the range for yy from 20-20 to 2020.

Answer:

B. [0,5][0, 5] by [20,20][-20, 20]


Would you like more details on how to identify extreme points of the graph?

Related Questions:

  1. How do you find the critical points of a cubic function?
  2. What does the first derivative test tell us about a function's behavior?
  3. How do we determine the global maximum and minimum of a function?
  4. Can the second derivative be used to identify concavity and inflection points?
  5. How do the inflection points of this cubic function relate to the graph's shape?

Tip:

When choosing a viewing window for graphing, ensure that the window captures the important features like the function’s turning points, intersections, and extreme values without cutting off any key parts of the graph.

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Math Problem Analysis

Mathematical Concepts

Cubic Functions
Graphing
Critical Points
Extrema
Viewing Windows

Formulas

y = (1/3)x^3 - (5/2)x^2 + 6x - 4

Theorems

First Derivative Test
Extreme Value Theorem

Suitable Grade Level

Grades 9-12