Math Problem Statement
Solution
The problem asks to sketch the graph of a function based on the following conditions:
These conditions give important information about the function and its derivatives at specific points:
- : The graph passes through the origin at .
- : The slope of the tangent at is 3, meaning the graph is rising steeply at .
- : The slope of the tangent at is 0, indicating a horizontal tangent at , which suggests a local maximum or minimum.
- : The slope at is negative, meaning the graph is decreasing.
Evaluating the given options in the image:
-
First graph (top-left):
- At , the graph passes through the origin, and the slope appears steep and positive, which matches and .
- At , there is a horizontal tangent, which satisfies .
- After , the graph starts decreasing, consistent with .
-
Second graph (top-right):
- At , the graph passes through the origin, but the slope seems less steep than 3.
- At , the slope is not clearly horizontal, which does not satisfy .
-
Third graph (bottom-left):
- At , the graph does not pass through the origin, so it doesn't satisfy .
-
Fourth graph (bottom-right):
- The graph seems to meet some conditions, but at , the slope appears incorrect for , and the graph doesn't match all conditions.
Conclusion:
The first graph (top-left) is the correct choice. It satisfies all the given conditions for , including the correct values of the function and its derivatives at the specified points.
Would you like more details, or do you have any questions about this?
Here are 5 related questions for further exploration:
- What is the significance of a function's derivative being zero at a point?
- How can you determine concavity from a graph?
- What does it mean when the derivative of a function is positive or negative?
- How can you find local maxima and minima using the first derivative?
- What is the geometric interpretation of the second derivative?
Tip: A function’s first derivative gives the slope of the tangent line, while the second derivative provides information about the curvature (concavity) of the graph.
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Math Problem Analysis
Mathematical Concepts
Graph of a function
Derivatives
Critical points
Slope
Formulas
Derivative: f'(x) = slope of the tangent line at x
Theorems
First derivative test
Critical points theorem
Suitable Grade Level
Grade 12 or College-level Calculus