math

5. lines in a place that never intersect, no matter how far they are extended in either direction
7. the system of equations do not interest do not intersect at any point resulting in parallel lines; there are no values that satisfy the system of equations; the lines will have the same slope but different y intercepts.
9. the system of equations intersects at a single point, resulting in exactly one ordered that satisfies all of the equations in the system; the lines will have different slopes
11. used to solve a system of equations by eliminating one of the variables to obtain a new equation with only one variable
13. used to solve a system of equations by graphing each equation on the coordinate plane and identifying the points where the graphs intersect, if they intersect; these points of intersection represent the solutions to the solutions to the system of equations.
14. lines in a plane that never intersect at a right angle (90 degrees)

1. a numerical or constant factor that is multiplied by a variable in an expression or equation
2. used to find the solution to a system of equations by solving one equation for one variable and then substituting that expression into the other equations
3. A System the ordered pair that makes all of the equations in a system true
4. the system of equations represent identical lines resulting in an unlimited number of solutions; the lines will have the same slope and y-intercept
6. Equations two or more linear equations that are solved simultaneously to find the values of the variables that satisfy all equations in the system
8. the point where a graph intersects the y axis. It is the value of y when x is equal to zero (0,y)
10. a symbol or letter representing an unknown quantity
12. the point where a graph intersects the x- axis. It is the value of x when y is equal to zero