Algebra II - Module 3 Vocabulary

Questions and Answers

What is the Axis of Symmetry?

A method used to eliminate radicals

The line about which a graph is symmetric (correct)

A form of quadratic equation

The lowest point of a graph

What does Completing the Square do?

It turns a quadratic expression into a perfect square trinomial.

What are Complex Conjugates?

Two complex numbers of the form a + bi and a - bi (correct)

A type of function

A method to simplify expressions

Two real numbers

A Complex Number can be written in the form ___, where a and b are real numbers and i is the imaginary unit.

a + bi Signup and view all the answers

What is Factored Form in a quadratic equation?

0 = a (x-p)(x-q), where a ≠ 0. Signup and view all the answers

What is the Imaginary Unit?

The principal square root of -1 Signup and view all the answers

What is a Pure Imaginary Number?

A number of the form bi, where b is a real number. Signup and view all the answers

A Quadratic Inequality includes a ___ expression.

quadratic Signup and view all the answers

What are Quadratic Relations?

Equations of parabolas with horizontal axes of symmetry that are not functions. Signup and view all the answers

What does Rationalizing a Denominator accomplish?

It removes radicals from the denominator of a fraction Signup and view all the answers

What is the Standard Form of a quadratic equation?

ax^2 + bx + c = 0, where a ≠ 0. Signup and view all the answers

What is the Vertex of a parabola?

The lowest point or the highest point on a parabola Signup and view all the answers

Vertex Form of a quadratic function is expressed as f(x) = ___.

a(x-h)^2 + k Signup and view all the answers

Study Notes

Algebra II - Module 3 Vocabulary

Axis of Symmetry: Designates the vertical line that divides the graph into two mirror-image halves, significant in understanding the parabolic shape of quadratic functions.
Completing the Square: Involves rearranging a quadratic expression to form a perfect square trinomial, facilitating the solution of quadratic equations and analysis of graph properties.
Complex Conjugate: Two complex numbers represented as (a + bi) and (a - bi), essential for simplifying expressions and solving polynomial equations involving imaginary numbers.
Complex Number: Any number expressible in the form (a + bi), where (a) and (b) are real numbers, and (i) is the imaginary unit, expanding the number system to include solutions to all polynomial equations.
Factored Form: A quadratic equation written as (0 = a(x-p)(x-q)), clearly indicating the x-intercepts (p) and (q) of the graph, which aids in graphing and analyzing quadratic functions.
Imaginary Unit: Defined as the principal square root of -1, denoted as (i), serving as the foundation for complex numbers and facilitating operations involving negative square roots.
Pure Imaginary Number: Contains the form (bi) where (b) is a real number. These numbers exist solely along the imaginary axis in the complex plane.
Quadratic Inequality: An expression involving a quadratic that is set as an inequality. This concept is crucial for determining ranges of x-values that satisfy certain conditions within a quadratic function.
Quadratic Relations: Describes equations representing parabolas with horizontal axes of symmetry, distinguishing them from functions since they do not pass the vertical line test.
Rationalizing a Denominator: A technique that eliminates radicals from the denominator of a fraction, enhancing the simplicity and clarity of mathematical expressions.
Standard Form: A quadratic equation presented as (ax^2 + bx + c = 0), where (a) cannot equal zero. This standardization is crucial for identifying coefficients and understanding the parabola’s properties.
Vertex: Refers to the peak or lowest point of a parabola, which plays a vital role in determining the maximum or minimum values of the quadratic function.
Vertex Form: Expresses a quadratic function as (f(x) = a(x-h)^2 + k), where ( (h, k) ) denotes the vertex, making it useful for graphing and understanding the function's transformations.

Description

Test your knowledge of key terms in Algebra II Module 3 with our vocabulary flashcards. This quiz covers essential concepts such as axis of symmetry, completing the square, complex conjugates, and complex numbers. Perfect for reinforcing your understanding as you progress through the module.