1. Vocabulary Chapter 5

2. The phrase meaning the relationship between two changing quantities is the

3. Rate of change.

4. The ratio for the vertical change(or rise) to the horizontal change or (run) is called the

5. Slope.

6. A relationship that can be represented by a function in the form y = kx is called a

7. Direct variation.

8. An equation that models a linear function is called a

9. Linear equation.

10. The slope-intercept form of a linear equation is given by

11. y = mx + b

12. The point-slope form of a linear equation is given by

13. y – y₁ = m(x - x₁)

14. The standard form of a linear equation is given by

15. Ax + By = C

16. The x- and y-coordinates where a graph crosses the x- and y-axis are called the

17. x- and y-intercepts

18. Lines in the same plane that do not intersect are called

19. Parallel lines

20. Lines that intersect to form right angles are called

21. Perpendicular lines

22. Two numbers whose product is -1 are called

23. Opposite reciprocals

24. The slopes of parallel lines are

25. Equal

26. The slopes of perpendicular lines are

27. Opposite reciprocals

28. A graph that relates two different sets of data by displaying them as ordered pairs is called a

29. Scatter plot

30. A line on a scatter plot, drawn near the points, that shows a correlation is called a

31. Trend line

32. Using a trend line to estimate a value between known values is called

33. Interpolation

34. Using a trend line to estimate values outside the range of known values is called

35. extrapolation

36. The trend line that shows the relationship between two sets of data the most accurately is called the

37. Line of best fit

38. Functions that have V- shaped graphs that open up or down are called

39. Absolute value functions

40. A shift of a graph horizontally, vertically, or both is also called a

41. Translation