1 / 16

Pick up your new packet and find your seat. Silently start your warm-up for Tuesday.

Welcome Back!. Tuesday. What is the slope of the line -5x – 2y = 22?. Pick up your new packet and find your seat. Silently start your warm-up for Tuesday. IW. Learning Target:. IWBAT write the equation of a perpendicular line in various situations.

eytan
Download Presentation

Pick up your new packet and find your seat. Silently start your warm-up for Tuesday.

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. Welcome Back! Tuesday What is the slope of the line -5x – 2y = 22? Pick up your new packet and find your seat. Silently start your warm-up for Tuesday. IW Learning Target: IWBAT write the equation of a perpendicular line in various situations.

  2. Silently work on your Warm Up You have 5 minutes Learning Target: Learning Target: IWBAT write the equation of a perpendicular line in various situations.

  3. Don’t forget to write your Learning Target You have 4 minutes Learning Target: IWBAT demonstrate several ways it is importantto solve for y Learning Target: IWBAT write the equation of a perpendicular line in various situations.

  4. Make Sure You Answer All of the Questions You have 3 minutes Learning Target: IWBAT demonstrate several ways it is importantto solve for y Learning Target: IWBAT write the equation of a perpendicular line in various situations.

  5. Done? Answer the Reflection Question! You have 2 minutes Learning Target: IWBAT demonstrate several ways it is importantto solve for y Learning Target: IWBAT write the equation of a perpendicular line in various situations.

  6. Time’s Almost Up!Make sure you have your name on BOTH sides of your AEM You have 1 minute Learning Target: IWBAT demonstrate several ways it is importantto solve for y Learning Target: IWBAT write the equation of a perpendicular line in various situations.

  7. Warm-Up Review Time!!! Eyes up Front Mouths Closed Ears Listening

  8. Warm Up Check 2. Solve for y 3x + y = 12 What is the slope of the line -5x – 2y = 22? IWBAT demonstrate several ways it is importantto solve for y Learning Target: IWBAT write the equation of a perpendicular line in various situations.

  9. Turn to Page 3

  10. Slopes of Perpendicular Lines Find the slope of each line: Slope (m) of line A: _________ Slope (m) of line B: _________ Slope (m) of line C: _________ A B 3/2 3/2 C -2/3 What do you notice about the slopes of A and B? ________________________________________________________________ The slopes are the same Slopes of ____________ lines are ___________________! parallel the same

  11. What do you notice about the slopes of B and C? __________________________________________________________________ The slopes different; opposite; reverse, upside down; flipped perpendicular Slopes of __________________ lines are _____________________ _____________________!! opposite reciprocals What’s an opposite reciprocal? EXAMPLES: 3 -1/3 sign OPPOSITE – change the ___________ RECIPROCAL - ___________! 7/5 -5/7 flip it _____ AND _____ _____ AND _____

  12. EX 1 • Use the following clues to write an equation for Line A. • Line A has a y-intercept of -1. • Line A is perpendicular to the line • y = 4x + 3 • Equation for Line A: _____________________ y = -1/4x - 1

  13. EX 2 • Line K is perpendicular to the line y = -5x + 4. • Line K contains the point (3,3). 1/5 Slope (m) : ________________ Y-intercept (b) : ____________ Equation of line: _______________________ 2.4 y = 1/5x + 2.4

  14. EX 3 Write the equation of the line that goes through (4, -5) and is perpendicular to the line y = 4x + 4. What is the slope of your new line? -1/4 1 Find the y-intercept (Plug into y = mx + b) 2 Now put it all together…. The equation of the line is: _______________________ y = -1/4x - 4

  15. You try it! Write the equation of the line that goes through (0, 4) and is perpendicular to the line y = 3x. The equation of the line is: _______________________ y = -1/3 + 4

  16. For the Rest of Class work on the problems on Page 5 and 6. If you get done early, start your homework – Page 9

More Related