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Across 2. A two-variable equation is written in ______ if one of its variables is isolated on one side of the equation 5. The ratio of the vertical rise to the horizontal run between any two points on a line 10. A letter used to represent a range of numbers 14. The positive integers 16. If a term of an expression consists of a number multiplied by one or more variables, the number is the _____ of the term 18. A pair of numbers used to identify a point in a coordinate plane 19. If the slope is positive, the line _____ from left to right 20. Two operations that undo each other 21. The positive integers together with 0 23. One of the four regions into which the axes divide a coordinate plane 26. The inverse of Division 27. A symbolic form made up of constants, variables, and operations 29. The second number in an ordered pair 30. The vertical axis in a coordinate plane 31. The numbers .....,-3,-2,-1,0,1,2,3,...

Down 1. Terms in an expression that have the same variable raised to the same power 3. Formed by two real number lines that intersect at a right angle 4. The inverse of Addition 6. This is an example of what property: 2(x+5) = 2x + 10 7. If the slope is negative, the line _____ from left to right 8. An expression is ______ if it has no grouping symbols and if all the like terms have been combined 9. A linear equation of the form Ax+By=C where A and B are not both zero is in ________ 11. The line is ______ if the slope = 0 12. The x-coordinate of a point where a graph crosses the x-axis 13. Equations that have the same solution(s) 15. The point in the coordinate plane where the horizontal axis intersects the vertical axis 17. The y-coordinate of a point where a graph crosses the y-axis 22. The first number in an ordered pair 24. The line is ______ if the slope is undefined 25. A statement formed by placing an equal sign between two expressions 28. The horizontal axis in a coordinate plane