Crossword Puzzle on Points, Lines, & Linear Equations Linear Equations by You 1 5 6 7 9 11 12 14 15 16 Across 1. 5. 8. 9. 10. 12. 14. 15. 17. 19. 20. An instrument used to measure degrees of an angle which consists of all rays with a common endpoint between two opposite rays in a half plane correlated with the positive real numbers between 0 and 180 inclusive is called a(n) ____. Two lines that intersect to form a right angle are _____. The length of a line segment is its _____ between the two endpoints. The slope of a vertical line is _____. The generic name for the horizontal axis of the rectangular coordinate system is ____. If the equation of a line has the pattern of y = mx + b, then it is written in ____ form. (two words) If a point on a line has a y-coordinate of zero, then it is the _____. The point at which a line crosses the vertical axis of the Cartesian coordinate system is its _____. If two lines intersect, then the coordinates of the point of intersection is a(n) ____ for both lines. If two distinct lines lie in the same plane and have the same slope, then they are _____. The generic term for the vertical axis of the rectangular coordinate system is the ____. Down 2. 3. 4. 5. 6. 7. 11. 13. 16. 18. The name given to the point of intersection of the axes of the rectangular coordinate system whose coordinates are ( 0 , 0 ) is the ______. _____ is the ratio of the change in the y values to the change in the x values of two points on a line. The axes of the rectangular coordinate system divide the coordinate plane into four regions called _____. The linear equation (y - 4) = .375 (x + 8) is written in ______ form. (two words) The French mathematician credited with the invention of the rectangular coordinate system is named _____. The point on a segment whose coordinates are the average of the respective coordinates of the endpoints is the _____ of the segment. The slope of any horizontal line is always ____. The linear equation 3x + 4y = 24 is written in _____ form. An instrument consisting of two legs joined at a fixed point and used to create arcs and circles or to replicate distances is called _____. A(n) ____ is an instrument used to measure distance created by marking off congruent segments on a line and correlating those segments with the positive real numbers . Word List abscissa perpendicular slope intercept compass point slope solution distance protractor standard midpoint quadrants undefined ordinate Rene Descartes x-intercept origin ruler y-intercept parallel slope zero