Math Problem Statement
Solution
The problem in the image is:
"Grafik fungsi menyinggung sumbu . Tentukan nilai yang memenuhi."
Translation: "The graph of the function touches the -axis. Determine the value of that satisfies this condition."
Solution:
If the graph of the function touches the -axis, it means the function has a double root (i.e., the discriminant must be zero at that point). We need to analyze when the cubic function has a root with multiplicity 2.
- Function: .
- Condition: The graph touches the -axis, so has a repeated root.
Let's proceed with the necessary steps:
-
Find the derivative of :
-
**Condition for touching the -axis:
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Math Problem Analysis
Mathematical Concepts
Cubic Functions
Roots of Equations
Derivative
Tangent
Formulas
Derivative of a cubic function: y' = 3ax^2 - 4x + 2a
Touching the x-axis: requires double root
Theorems
Multiplicity of Roots
Suitable Grade Level
Grades 11-12
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