1 / 34

3-7A Equations of Lines in the Coordinate Plane

3-7A Equations of Lines in the Coordinate Plane. Learning Goals 1. To graph linear equations. Slope-Intercept Form y = mx + b m: slope of the line b: y-axis intersection point. slope (m) = If it is a whole number, put it over 1. example: y = -3x + 2 m = -3 = =. rise. run. -3.

maile-greene
Download Presentation

3-7A Equations of Lines in the Coordinate Plane

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. 3-7AEquations of Lines in the Coordinate Plane

  2. Learning Goals1. To graph linear equations.

  3. Slope-Intercept Formy = mx + bm: slope of the lineb: y-axis intersection point

  4. slope (m) = If it is a whole number,put it over 1.example: y = -3x + 2m = -3 = = rise run -3 3 1 -1

  5. Slopem =

  6. Find the slope of the points (-1, 3) and (-3, 9).y2 – y1x2 – x1

  7. Find the slope of the points (-1, 3) and (-3, 9).y2 – y1x2 – x19 – 3-3 - -1

  8. Find the slope of the points (-1, 3) and (-3, 9).y2 – y1x2 – x19 – 3-3 - -16-2

  9. Find the slope of the points (-1, 3) and (-3, 9).y2 – y1x2 – x19 – 3-3 - -16 -2 =

  10. y-axis intercept (b)Hits or crosses the y-axis at this point.Coordinates of they-intercept: (0,b)

  11. slope = = 2 2 1

  12. slope = = 2 y-int. = +2 2 1

  13. slope = = 2 y-int. = +2 y = mx + b 2 1

  14. slope = = 2 y-int. = +2 y = mx + b y = 2x + 2 2 1

  15. Special Linesy = 2Horizontal line passing through (0,2) with a slope = 0.

  16. Special Lines x = 2 Vertical line passing through (2,0) with an undefined slope

  17. To find the slope put the equation in the form y = mx + b.18x – 42y = 210

  18. To find the slope put the equation in the form y = mx + b.18x – 42y = 210 -18x -18x

  19. To find the slope put the equation in the form y = mx + b.18x – 42y = 210 -18x -18x -42y = ?

  20. To find the slope put the equation in the form y = mx + b.18x – 42y = 210 -18x -18x -42y = -18x + 210

  21. To find the slope put the equation in the form y = mx + b.18x – 42y = 210 -18x -18x -42y = -18x + 210 -42 -42 -42

  22. To find the slope put the equation in the form y = mx + b.18x – 42y = 210 -18x -18x -42y = -18x + 210 -42 -42 -42 y =

  23. To find the slope put the equation in the form y = mx + b.18x – 42y = 210 -18x -18x -42y = -18x + 210 -42 -42 -42 3 x y = 7

  24. To find the slope put the equation in the form y = mx + b.18x – 42y = 210 -18x -18x -42y = -18x + 210 -42 -42 -42 3 x - 5 y = 7

  25. To find the slope put the equation in the form y = mx + b.18x – 42y = 210 -18x -18x -42y = -18x + 210 -42 -42 -42Slope = the number in front of x. 3 x - 5 y = 7

  26. To graph the line make surethe equation is in theform y = mx + b.

  27. Graph the equation.-2x + 6y = 12

  28. Graph the equation.-2x + 6y = 12y = x + 2 1 3

  29. Graph the equation.-2x + 6y = 12y = x + 2 1 3

  30. Graph the equation.-2x + 6y = 12y = x + 2 1 3

  31. Graph the equation.-2x + 6y = 12y = x + 2 1 3

  32. Graph the equation.-2x + 6y = 12y = x + 2 1 3

  33. Turn to page 193.1, 2, 218-12, 16-20, 38-41, 64-66, 71-745 Points: 100% Complete 4 Points: 80% Complete 3 Points: 60% Complete 2 Points: 40% Complete 1 Point: 20% Complete

More Related