뒤로College Algebra Final Exam Review – Step-by-Step Guidance
스터디 가이드 - 스마트 노트
자료에 맞춘 맞춤형 노트, 핵심 정의, 예시, 맥락을 확장해 제공합니다.
Q24. For the quadratic function :
Background
Topic: Quadratic Functions (Vertex Form)
This question tests your understanding of how to find the vertex of a parabola and how to rewrite a quadratic function in vertex form. The vertex form of a quadratic function is useful for identifying the vertex and understanding transformations.
Key Terms and Formulas:
Standard form of a quadratic:
Vertex form: , where is the vertex
Vertex formula: ,
Step-by-Step Guidance
Identify the coefficients: , , .
Find the x-coordinate of the vertex using .
Substitute the value of back into to find the y-coordinate of the vertex: .
Rewrite the function in vertex form by completing the square or using the vertex found above.

Try solving on your own before revealing the answer!
Final Answer:
a) Vertex:
b) Vertex form:
The vertex is found using the formula , and the function is rewritten by completing the square.