1 / 14

X- and Y- Intercepts

X- and Y- Intercepts. Objective: To identify the x- and y- intercepts. Standard 6.0. Return Quizzes . Any questions? 13 total points 2 extra credit points for last question. Intercepts. X-Intercept: where the line crosses the x-axis ordered pair: (x,0)

mizell
Download Presentation

X- and Y- Intercepts

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. X- and Y- Intercepts Objective: To identify the x- and y- intercepts. Standard 6.0

  2. Return Quizzes • Any questions? • 13 total points • 2 extra credit points for last question

  3. Intercepts • X-Intercept: where the line crosses the x-axis • ordered pair: (x,0) • Y-Intercept: where the line crosses the y-axis • Ordered pair: (0,y) Y-intercept X-intercept

  4. Example 1 • State the x- and y- intercepts x-intercept: y-intercept: (-4,0) (0,2)

  5. TOO • State the x- and y- intercepts x-intercept: y-intercept: (3,0) (0,6)

  6. Example 3 • State the x- and y- intercepts x-intercept: y-intercept: (5,0) none Will this vertical line ever cross the y-axis? no

  7. Cover up Method! • If an equation is in standard form ax + by = ca,b,c are all #’s Cover up method: • To find x-intercept, cover up the y • To find y-intercept, cover up the x Example:5x + 4y = 20 y-intercept: (0,5) x-intercept: (4,0)

  8. Examples 5 & 6 6x + 3y = -18 y-intercept: (0,-6) x-intercept: (-3,0) x – 4y = 14 y-intercept: (0,-7/2) x-intercept: (14,0)

  9. TOO Write the x- and y- intercepts as ordered pairs 3y = 2x + 12 5x – 3y = 20 (0,4) (-6,0)

  10. Review – Write an equation in point-slope (-4,3) m = 1 7 (6,-2)(5,7)

  11. Review – Write an equation in Standard Form (5,-15)(11,-3) y+5 = -4(x+1)

  12. Review – Write an equation in Standard Form (8,-7) m = undefined (9,-2) m = 0

  13. Homework • Pg. 350 #19-21 a & b, 22-27 • Write the intercepts as an ordered pair • X-intercept: (#,0) • Y-intercept: (0,#)

  14. Monster Problem Time!!

More Related