To identify: The graph of the each function by using discriminant:
The resultant match is:
Given information:
The given functions are:
Explanation:
Consider the given function:
The function intersects the x -axis means
Now compare this equation with
Then the values are
The discriminate of the quadratic equation is:
The discriminate is
Therefore, the graph shown in option 2 is the best match for the function
Now consider the second given function:
The function intersects the x -axis means
Now compare this equation with
Then the values are
The discriminate of the quadratic equation is:
The discriminate is
Therefore, the graph shown in option 3 is the best match for the function
Now consider the third given function:
The function intersects the x -axis means
Now compare this equation with
Then the values are
The discriminate of the quadratic equation is:
The discriminate is
Therefore, the graph shown in option 1 is the best match for the function
Chapter 4 Solutions
High School Math 2015 Common Core Algebra 2 Student Edition Grades 10/11
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- 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