Systems of Equations

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Across
  1. 2. Replacing the variables in an algebraic expression with their numerical values to solve a system of equations
  2. 4. An equation which they intersect at one point
  3. 5. Solving a system of equations by drawing a graph
  4. 8. An alphabet or term that represents an unknown number, value or quantity
  5. 9. A system of linear equations
  6. 10. An equation in which there is no point where the functions intersect
Down
  1. 1. An equation in which the answer looks like this ∞
  2. 3. Either adding or subtracting the equations to get an equation in one variable (aka eliminating)
  3. 6. The point at which two lines meet
  4. 7. A pair of numbers written in (X,Y) form that represents a straight line on the coordinate plane