Concept explainers
To determine: The explanation to find the number and type of solutions of the
Answer to Problem 7CT
The discriminant of the quadratic equation is greater than zero and equation has two solutions.
Explanation of Solution
Given information:
The quadratic equation:
The graph of the equation:
Formula used:
Discriminant formula:
The discriminant D of a quadratic equation
Discriminant conditions:
If
If
If
Calculation:
The given quadratic equation is
It is seen in the graph that the curve of the quadratic equation intersects the x -axis at two points. This means the equation has two solutions.
Also, the discriminant of the quadratic equation is greater than zero.
To find the discriminant of the given equation, use the discriminant formula
Substitute −1 for a ,
It is seen that the discriminant is greater than zero.
So, the equation has two solutions.
Hence, the discriminant of the quadratic equation is greater than zero and equation has two solutions.
Chapter 3 Solutions
Big Ideas Math A Bridge To Success Algebra 2: Student Edition 2015
- Algebra and Trigonometry (6th Edition)AlgebraISBN:9780134463216Author:Robert F. BlitzerPublisher:PEARSONContemporary Abstract AlgebraAlgebraISBN:9781305657960Author:Joseph GallianPublisher:Cengage LearningLinear Algebra: A Modern IntroductionAlgebraISBN:9781285463247Author:David PoolePublisher:Cengage Learning
- Algebra And Trigonometry (11th Edition)AlgebraISBN:9780135163078Author:Michael SullivanPublisher:PEARSONIntroduction to Linear Algebra, Fifth EditionAlgebraISBN:9780980232776Author:Gilbert StrangPublisher:Wellesley-Cambridge PressCollege Algebra (Collegiate Math)AlgebraISBN:9780077836344Author:Julie Miller, Donna GerkenPublisher:McGraw-Hill Education