1 / 7

A x + B y = C Form: x- and y- intercepts

A x + B y = C Form: x- and y- intercepts. Lesson 5-7. Review. When given A x + B y = C, and asked to graph…  y = m x + b **goal: is to change to y = m x + b, by ISOLATING the y y-intercept (aka “b”): The point at which a line on a graph intercepts/crosses the y -axis

dora
Télécharger la présentation

A x + B y = C Form: 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. Ax + By = C Form:x- and y- intercepts Lesson 5-7

  2. Review When given Ax + By = C, and asked to graph…  y = mx + b **goal: is to change to y = mx + b, by ISOLATING the y y-intercept (aka “b”): The point at which a line on a graph intercepts/crosses the y-axis x-intercept: The point at which a line on a graph intercepts/crosses the x-axis

  3. X- and Y- Intercepts X- and Y- intercepts… what does that mean? WHERE on the x-axis/y-axis the line passes (Just TWO points  on x and y)

  4. X- and Y- Intercepts Find the x- and y- intercepts of the equation: 3x + 4y= 12 Find the x-intercept: 3x + 4y = 12 *let y = 0 3x + 4(0) = 12 3x = 12 x = 4 Find the y-intercept: 3x + 4y = 12 *let x= 0 3(0) + 4y= 12 4y= 12 y= 3

  5. X- and Y- Intercepts Find the x- and y- intercepts of the equation: 2x – y = 4 Find the x-intercept: 2x – y = 4 *let y = 0 2x – (0) = 4 2x = 4 x = 2 Find the y-intercept: 2x – y= 4 *let x= 0 2(0) – y = 4 -y= 4 y= -4

  6. Practice Find the x- and y- intercepts of: A) 10x – 2y = 20 B) 5x + 2y = -10

  7. Homework p. 249 #15, 18, 19, 20, 22 (solve x- and y-) #33,34, 35-38 (graph all problems BUT 33, 34)

More Related