Ch. 4 Vocabulary

2. form. The equations are eventually added together to get rid of one of the variables.
4. A representation that shows numerical information spatially.
7. values method, A method for solving a system of equations that is used when both equations are
8. statement, A statement that defines what the variables represent.
9. of equations, A set of equations that uses the same variables.
10. solutions, A system of equations is said to have this when the graphs are on top of each other or when
13. The number or numbers that when substituted into an equation (or equations) make the
14. for the same variable.
17. When a system with no solutions is graphed, the lines are this.
18. method, A method for solving a system of equations that is used when one of the equations is
20. method, A method for solving a system of equations that is used when both equations are in
22. + b, A form for writing an equation that allows you to quickly identify the starting amount (y-intercept)
23. form A form for writing an equation that looks like Ax + By = C and follows the format "part + part =
24. algebraically the variables are gone and there is a true statement of equality.
25. solution, A system of equations is said to have this when the graphs never cross or when solving

1. A mathematical summary (usually an equation) of a trend in data.
3. A representation that organizes numerical information into columns or rows.
5. true.
6. the variables are gone and there is a false statement of equality.
11. A representation that is presented as a mathematical sentence that includes an equals sign.
12. of intersection, When a system of equations is graphed, this is where the solution(s) is (are).
14. for one of the variables. That amount is plugged into the other equation.
15. sentence, An equation that uses variables to represent unknown quantities.
16. When a system with infinite solutions is graphed, the lines are this.
19. A representation that is presented as a story problem.
21. rate of change (slope).