Systems of equations

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Across
  1. 1. two or more related linear equations
  2. 3. where 2 things meet
  3. 8. the line is the same, points lie on the same line
  4. 9. A branch of mathematics that includes the use of variables to express rules about numbers, numbers relationships and operations
  5. 11. in a system of linear equation this means the collinear
  6. 13. equation an equation in 2 variables whose graphs in a coordinate plane is a straight line
  7. 14. a pair of numbers that give the coordinate of a point on a grid in this order: (horizontal x, Vertical y)
  8. 15. any value for a variable that makes an equation or inequality true
Down
  1. 2. the points (x,y) at which both lines that represent a system intersect
  2. 4. a statement that two mathematical expressions are equal
  3. 5. in a system of linear equations this means the lines are parallel
  4. 6. a group of numbers, symbols and variables that express an operation
  5. 7. adding subtracting or multiplying a system of equations to help solve a system
  6. 10. graphing 2 or more linear equations to determine the solution to the system
  7. 12. one equation is solved for one variable and that solution is substituted into the second equation