Across
- 3. This type of line has a slope of zero.
- 7. The point where the line intersects the y-axis has this name.
- 8. Slopes of perpendicular lines are flipped with opposite signs. This is called _____________.
- 12. The average of the x-coordinates and average of the y-coordinates make up this point on the line segment.
- 13. To determine the distance between two endpoints, we calculate the ___________ of the line segment.
- 14. This line segment begins at one vertex of a triangle and meets the opposite side at a right angle.
- 15. At the y-intercept, this is the value of x.
Down
- 1. The distance or length formula is the only analytic geometry formula with this operation.
- 2. Vertical lines have this type of slope.
- 4. Formula used to find the equation of a line, given slope and a point or two points on the line.
- 5. This line begins at one vertex of a triangle and connects to the midpoint of the opposite side.
- 6. These types of lines have slopes that are equal.
- 9. This line passes through the midpoint of a line segment and is perpendicular to the line segment.
- 10. We use rise over run to help measure the _________ of a line on the graph.
- 11. Equation of a line used when given slope and the y-intercept.