Math crossword

6. a pair of numbers used to locate a point on a coordinate plane
8. a surface of which one end or side is at a higher level than another; a rising or falling surface
9. the principal or horizontal axis of a system of coordinates
11. is simply the way of writing the equation of a line so that the slope
14. horizontal value in a pair written first in an ordered pair
16. a straight line drawn through the center of a group of data points plotted on a scatter plot
17. vertical value in a pair written second in an ordered pair

1. The linear inequality divides the coordinate plane into two halves
2. the x-coordinate of a point where a line, curve, or surface intersects the x-axis
3. a first-order equation involving two variables: its graph is a straight line in the Cartesian coordinate system
4. numbered using Roman numerals: I II III IV
5. the secondary or vertical axis of a system of coordinates
7. an equation between two variables that gives a straight line when plotted on a graph
10. The plane determined by a horizontal number line, called the x-axis, and a vertical number line, called the y-axis, intersecting at a point called the origin
12. y1 is the y value of the known point on the line, m is the slope and x1 is the x value of the known point
13. where the line crosses the y-axis
15. This point has the coordinates 0,0 and is usually labelled with the letter O