Systems of Equations

A System of Equations can be defined as a collection of several equations that share the same variables. The solutions to these systems are the variable values that simultaneously meet the conditions of all the equations. They are typically solved using substitution, elimination, or graphical methods and are frequently utilized in sectors such as physics, economics, and engineering.

Substitution Method

Solve the following system of equations using the substitution method: \(2x + 3y = 12\) and \(x = y + 4\)

Addition/Elimination Method

Solve the following system of equations using the Addition/Elimination method: \(3x - 2y = 4\) and \(2x + 3y = -1\)

Determining Perpendicular Lines

Find the equation of the line perpendicular to the line \(2x - 3y = 6\) and passing through the point \((1, 2)\).

Graphing Method

Solve the system of equations using the graphing method: \(y = 2x + 3\) and \(y = -x + 1\)

Determining if the Point is a Solution

Determine if the point (2,5) is a solution to the system of equations: \(2x + 3y = 16\) and \(x + 4y = 18\)

Finding the Constant of Variation

Consider the system of equations \(3x - y = 12\) and \(kx - 2y = 24\), where \(k\) is the constant of variation. If the system has no solution, what is the value of \(k\)?

Dependent, Independent, and Inconsistent Systems

Solve the following system of equations: \(2x + 3y = 6\) and \(4x + 6y = 12\)

Finding the Union (or)

Find the union of the solutions to the following system of equations: \n 1. \(2x + y = 10\) \n 2. \(x - y = 3\)

Finding the Equation with Real Coefficients

Find the equations of the lines that pass through the point (1,2) and are tangent to the circle with equation \(x^2 + y^2 = 25\).

Finding a Direct Variation Equation

Find the direct variation equation of a system of equations where \(y = 3x + 2\) and \(y = 5x - 1\).

Finding the Slope for Every Equation

Solve the following system of equations, and find the slope for each equation: \[\begin{matrix} 2x + 3y = 6 \ 5x - 4y = -2 \end{matrix}\]

Finding a Variable Using the Constant of Variation

Given the direct variation equation \(y = kx\), where \(y = 8\) when \(x = 4\), and a system of equations where \(2x + 3y = 10\) and \(5x - y = 15\), find the value of \(k\) and the solutions to the system of equations.