Linear Equations Study Cards

Enhance Your Learning with Linear Equations Flash Cards for quick learning



Linear Equation

An equation between two variables that creates a straight line when graphed.

Slope-Intercept Form

The equation of a line in the form y = mx + b, where m represents the slope and b represents the y-intercept.

Point-Slope Form

The equation of a line in the form y - y1 = m(x - x1), where (x1, y1) represents a point on the line and m represents the slope.

Standard Form

The equation of a line in the form Ax + By = C, where A, B, and C are constants and A and B are not both zero.

Parallel Lines

Lines in the same plane that never intersect and have the same slope.

Perpendicular Lines

Lines in the same plane that intersect at a right angle and have slopes that are negative reciprocals of each other.

X-Intercept

The x-coordinate of the point where a line intersects the x-axis.

Y-Intercept

The y-coordinate of the point where a line intersects the y-axis.

Solution of a Linear Equation

A value or set of values that make an equation true when substituted into the equation.

System of Linear Equations

A set of two or more linear equations with the same variables.

Consistent System

A system of linear equations that has at least one solution.

Inconsistent System

A system of linear equations that has no solution.

Dependent System

A system of linear equations that has infinitely many solutions.

Independent System

A system of linear equations that has exactly one solution.

Substitution Method

A method of solving a system of linear equations by solving one equation for one variable and substituting the result into the other equation.

Elimination Method

A method of solving a system of linear equations by adding or subtracting the equations to eliminate one variable.

Graphical Method

A method of solving a system of linear equations by graphing the equations and finding the point of intersection.

Word Problem

A problem that can be represented and solved using linear equations.

Linear Inequality

An inequality that can be represented by a linear equation.

Solution of a Linear Inequality

A value or set of values that make an inequality true when substituted into the inequality.

Half-Plane

The region of the coordinate plane that satisfies a linear inequality.

Feasible Region

The region of the coordinate plane that satisfies a system of linear inequalities.

Optimization

The process of finding the maximum or minimum value of a quantity subject to certain constraints.

Linear Programming

A method of optimization that involves maximizing or minimizing a linear objective function subject to linear constraints.

Direct Variation

A relationship between two variables in which one variable is a constant multiple of the other.

Inverse Variation

A relationship between two variables in which the product of the variables is a constant.

Joint Variation

A relationship between three or more variables in which the product of the variables is a constant.

Arithmetic Sequence

A sequence in which the difference between consecutive terms is constant.

Geometric Sequence

A sequence in which the ratio of consecutive terms is constant.

Arithmetic Series

The sum of the terms in an arithmetic sequence.

Geometric Series

The sum of the terms in a geometric sequence.

Recursive Formula

A formula that defines each term in a sequence in terms of previous terms.

Explicit Formula

A formula that defines each term in a sequence directly, without reference to previous terms.

Extraneous Solution

A solution of an equation that does not satisfy the original equation.

Domain

The set of all possible input values of a function.

Range

The set of all possible output values of a function.

Function Notation

A way to represent a function using symbols and equations.

Linear Function

A function that can be represented by a linear equation.

Nonlinear Function

A function that cannot be represented by a linear equation.

Piecewise Function

A function that is defined by different equations for different intervals of the domain.

Absolute Value Function

A function of the form f(x) = |x|, where |x| represents the distance between x and 0 on the number line.

Quadratic Function

A function of the form f(x) = ax^2 + bx + c, where a, b, and c are constants and a is not equal to 0.

Exponential Function

A function of the form f(x) = a^x, where a is a constant and x is the exponent.

Logarithmic Function

A function of the form f(x) = log_a(x), where a is a constant and x is the argument.

Rational Function

A function of the form f(x) = p(x)/q(x), where p(x) and q(x) are polynomials and q(x) is not equal to 0.

Inverse Function

A function that undoes the effect of another function.

Composite Function

A function that is formed by applying one function to the output of another function.

Function Composition

The process of combining two functions to form a composite function.

Domain Restriction

The process of limiting the domain of a function to exclude certain values.

Vertical Line Test

A test used to determine if a graph represents a function.

Horizontal Line Test

A test used to determine if a function is one-to-one.

One-to-One Function

A function in which each element of the range is paired with exactly one element of the domain.

Onto Function

A function in which each element of the range is paired with at least one element of the domain.

Even Function

A function that is symmetric with respect to the y-axis.

Odd Function

A function that is symmetric with respect to the origin.

Parent Function

The simplest form of a function in a family of functions.

Transformation

A change in the position, size, or shape of a graph.

Translation

A transformation that shifts a graph horizontally or vertically.

Reflection

A transformation that flips a graph across a line.

Dilation

A transformation that stretches or compresses a graph.

Vertical Stretch

A dilation that stretches a graph vertically.

Vertical Compression

A dilation that compresses a graph vertically.

Horizontal Stretch

A dilation that stretches a graph horizontally.

Horizontal Compression

A dilation that compresses a graph horizontally.

Rotation

A transformation that turns a graph around a fixed point.

Asymptote

A line that a graph approaches but never crosses.

Vertical Asymptote

A vertical line that a graph approaches as the input values increase or decrease without bound.

Horizontal Asymptote

A horizontal line that a graph approaches as the input values increase or decrease without bound.

Slant Asymptote

A slanted line that a graph approaches as the input values increase or decrease without bound.