1 / 10

Warm Up

Warm Up. Solve for y when x = 0. y = 8x – 2 6x + y = 2 2x – 3y + 6 = 0 4x – 2y = 1 -7x – 14y -5 = 0 . Advanced Algebra Trigonometry Appendix B. Objective: SWBAT graph equations by using the x and y-intercepts and point plotting. . Linear Equations.

simone
Télécharger la présentation

Warm Up

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. Warm Up Solve for y when x = 0. y = 8x – 2 6x + y = 2 2x – 3y + 6 = 0 4x – 2y = 1 -7x – 14y -5 = 0

  2. Advanced Algebra Trigonometry Appendix B Objective: SWBAT graph equations by using the x and y-intercepts and point plotting.

  3. Linear Equations A linear equation in slope intercept form has the form: y = mx + b (x, y) = a solution of the equation (an ordered pair) m = slope (steepness of a line) b = y-intercept * The graph of a linear equation is a line*

  4. x-intercepts and y-intercepts x-intercept: Where the line crosses the x-axis. (x, 0). To find the x-intercept, plug in zero for y and solve. y-intercept: Where the line crosses the y-axis. (0, y). To find the y-intercept, plug in zero for x and solve.

  5. Linear Equations Find four solutions for the following linear equations. Then graph the equation. 1. y = 2. y = 4x – 1

  6. x-intercepts and y-intercepts Find the x and y-intercepts of the following equations: 1. 4x – 5y = 20 2. -6x + 8y = -36

  7. How to Graph an Equation Isolate (get alone) one of the variables if possible (usually y) Find the x and y intercepts by plugging 0 in for y and then for x like we did on the previous screen (sometimes easier to do this before you isolate a variable) Make a table of values choosing four x values and find corresponding y values (if you isolated x then choose some y values and find corresponding x values) Plot these points and join in a smooth curve or line

  8. Linear Equations Graph the linear eqution: 1. 3 + y = -2x

  9. x2 + y2 = r2 Find the x and y-intercepts of: x2 + y2 = 9 Graph the equation. What does it make?

  10. Homework Page 447-449 # 21, 22, 23 and 43-46 (all)

More Related