Algebra 1 Unit 2 Test Flashcards

Key Concepts in Algebra 1

• Domain: Refers to the set of all possible x-values in a function.
• Solution: Identifies the x-intercept, where the graph intersects the x-axis.
• Linear Equation: A mathematical representation that, when graphed, forms a straight line.
• Parent Function: The simplest form of a linear function, expressed as Y = X.
• Zero: Another term for the x-intercept, indicating where the output of the function is zero.
• Dependent Variable: Represents the y-value in a function, which depends on the x-value.
• X-Intercept: The coordinates on a graph where the line crosses the x-axis.
• Discrete Graph: Consists of distinct points that are not connected to each other.
• Function: A relation where each x-value corresponds to exactly one y-value, ensuring no repetition of x-values.
• Vertical Line Test: A method used to determine if a curve represents a function; if a vertical line intersects it more than once, it is not a function.
• Function Notation: A way to write functions, illustrated by expressions such as F(x) = 3x - 5.
• Standard Form: A linear equation expressed as Ax + By = C, where A, B, and C are constants.
• Range: The set of all possible y-values in a function.
• Root: Equivalent to the x-intercept, indicating values of x for which the function equals zero.
• Equation Notation: A way to write linear equations, such as Y = 3X - 5, to express the relationship between x and y.
• Y-Intercept: The point at which the line intersects the y-axis, indicating the value of y when x is zero.
• Continuous Graph: A representation that includes a line or smooth curve, signifying that the function has no breaks.
• Independent Variable: Represents the x-value in a function, which can take on various inputs.