Find the Zeros of the Quadratic Function by Completing the Square

question 139

Multiple Choice

Find the zeros of the quadratic function by completing the square. List the x-intercepts of the graph of the function.
- $$f ( x ) = x ^ { 2 } - \frac { 2 } { 5 } x - \frac { 8 } { 25 }$$

• A) \(x = - \frac { 4 } { 5 } , x = - \frac { 2 } { 5 }\)
• B) \(x = \frac { 4 } { 5 } , x = \frac { 2 } { 5 }\)
• C) \(x = - \frac { 4 } { 5 } , x = \frac { 2 } { 5 }\)
• D) \(x = \frac { 4 } { 5 } , x = - \frac { 2 } { 5 }\)

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Definitions:

Java.lang.Math.*

The Java.lang.Math.* reference indicates the use of the Math class in the Java programming language, which provides methods for performing basic numeric operations such as exponentiation, logarithms, and trigonometric functions.

Actual Parameter

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One-To-One Correspondence

A relationship in which each element of one set is paired with exactly one element of another set, and vice versa.

Primitive Value

A simple value of a primitive type in programming, such as an integer or a boolean, not associated with any object.