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Have you ever wondered how to accurately determine the highest point of a quadratic equation? The peak, also known as the vertex, of a quadratic equation is a critical value that holds valuable information about the shape and behavior of the curve. Finding the peak is essential when analyzing the equation’s maximum or minimum values, drawing the graph, or solving related problems. In this guide, we will explore different methods and techniques that will enable you to effectively find the peak of any given quadratic equation. Whether you are a student, a math enthusiast, or simply curious about quadratic equations, this knowledge will expand your understanding of these mathematical expressions and their applications. So, let us dive in and learn how to find the peak of a quadratic equation.
This article was co-written by David Jia. David Jia is a tutoring teacher and founder of LA Math Tutoring, a private tutoring facility based in Los Angeles, California. With over 10 years of teaching experience, David teaches a wide variety of subjects to students of all ages and grades, as well as college admissions counseling and prep for SAT, ACT, ISEE, etc. scoring 800 in math and 690 in English on the SAT, David was awarded a Dickinson Scholarship to the University of Miami, where he graduated with a bachelor’s degree in business administration. Additionally, David has worked as an instructor in online videos for textbook companies such as Larson Texts, Big Ideas Learning, and Big Ideas Math.
This article has been viewed 107,532 times.
The vertex of a quadratic equation or parabp is the highest or lowest point of that equation. It lies on the plane of symmetry of the entire parabp; any point to the left of the parabp is also a full mirror image of the point to the right. If you want to find the vertex of a quadratic equation, you can use the vertex formula, or the square’s complement.
Steps
Using Peak Finding Formula
- x=-b/2a
- x=-(9)/(2)(1)
- x=-9/2
- y = x 2 + 9x + 18
- y = (-9/2) 2 + 9(-9/2) +18
- y = 81/4 -81/2 + 18
- y = 81/4 -162/4 + 72/4
- y = (81 – 162 + 72)/4
- y = -9/4
Square’s complement
- x 2 + 4x + 1 = 0
- x 2 + 4x + 1 -1 = 0 – 1
- x 2 + 4x = – 1
- (4/2) 2 = 2 2 = 4. Now add 4 to both sides of the equation, we have:
- x 2 + 4x + 4 = -1 + 4
- x 2 + 4x + 4 = 3
Advice
- Correctly identify a, b, and c.
- The operations must be in order to get the correct result.
Warning
- Check your results!
- Make sure a, b, and c are correct – otherwise, the answer will be wrong.
- Don’t worry too much – this calculation takes practice.
Things you need
- Math graph paper or computer screen
- Computer
This article was co-written by David Jia. David Jia is a tutoring teacher and founder of LA Math Tutoring, a private tutoring facility based in Los Angeles, California. With over 10 years of teaching experience, David teaches a wide variety of subjects to students of all ages and grades, as well as college admissions counseling and prep for SAT, ACT, ISEE, etc. scoring 800 in math and 690 in English on the SAT, David was awarded a Dickinson Scholarship to the University of Miami, where he graduated with a bachelor’s degree in business administration. Additionally, David has worked as an instructor in online videos for textbook companies such as Larson Texts, Big Ideas Learning, and Big Ideas Math.
This article has been viewed 107,532 times.
The vertex of a quadratic equation or parabp is the highest or lowest point of that equation. It lies on the plane of symmetry of the entire parabp; any point to the left of the parabp is also a full mirror image of the point to the right. If you want to find the vertex of a quadratic equation, you can use the vertex formula, or the square’s complement.
In conclusion, finding the peak of a quadratic equation is a relatively straightforward process that can be broken down into a few simple steps. By first determining the coefficients of the equation, it becomes possible to identify the axis of symmetry, which is the x-coordinate of the vertex. Then, using this x-coordinate, the y-coordinate of the vertex can be found by substituting it into the equation. By following these steps, one can accurately locate the peak or minimum point of a quadratic equation. It is important to note that this method is applicable for any quadratic equation, regardless of its form. With practice and familiarity with the concepts discussed, anyone can confidently find the peak of a quadratic equation and apply this knowledge to solving various mathematical and real-world problems.
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