Math Problem Statement
Solution
The given quadratic function is:
To rewrite this in vertex form, we will complete the square. The vertex form of a quadratic equation is:
where is the vertex of the parabola. Let's work through the process:
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Start with the quadratic:
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Factor out the coefficient of (which is 4) from the first two terms:
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To complete the square inside the parentheses, take half of the coefficient of (which is ), square it, and add it inside the parentheses:
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Add and subtract inside the parentheses:
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Now, simplify by factoring the perfect square trinomial and adjusting the constants:
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Finally, combine the constants:
So, the vertex form of the function is:
Would you like more details or have any questions?
Here are five related questions for further exploration:
- How do you find the vertex of a parabola from the standard form of a quadratic equation?
- What is the significance of the vertex in the graph of a quadratic function?
- How does completing the square help in converting to vertex form?
- Can you derive the vertex form directly from the quadratic formula?
- What are the advantages of using vertex form over standard form in graphing quadratics?
Tip: Completing the square is a valuable technique not only for rewriting quadratics but also for solving quadratic equations when factoring is difficult.
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Math Problem Analysis
Mathematical Concepts
Algebra
Quadratic Equations
Vertex Form
Completing the Square
Formulas
Standard form of a quadratic equation: y = ax^2 + bx + c
Vertex form: y = a(x - h)^2 + k
Theorems
Completing the Square
Suitable Grade Level
Grades 9-10
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