Transcript
![Page 1: Lesson 10 Equation of a line y = m x + b. (-3,2) (4,-3) Graph point (-3,2) Graph point 4,-3) Draw line Draw vertical side of triangle Draw horizontal](https://reader036.vdocuments.us/reader036/viewer/2022082917/551596a0550346486b8b5abf/html5/thumbnails/1.jpg)
Lesson 10
Equation of a line
y = m x + b
![Page 2: Lesson 10 Equation of a line y = m x + b. (-3,2) (4,-3) Graph point (-3,2) Graph point 4,-3) Draw line Draw vertical side of triangle Draw horizontal](https://reader036.vdocuments.us/reader036/viewer/2022082917/551596a0550346486b8b5abf/html5/thumbnails/2.jpg)
(-3,2)
(4,-3)
Graph point (-3,2)
Graph point 4,-3)
Draw line
Draw vertical side of triangle
Draw horizontal side of triangle
![Page 3: Lesson 10 Equation of a line y = m x + b. (-3,2) (4,-3) Graph point (-3,2) Graph point 4,-3) Draw line Draw vertical side of triangle Draw horizontal](https://reader036.vdocuments.us/reader036/viewer/2022082917/551596a0550346486b8b5abf/html5/thumbnails/3.jpg)
(-3,2)
(4,-3)
y is changing from 2 to -3
Change in y = (-3) – (2)
Change in y = -5
Y = 2
Y = 1
Y = 0
Y = -1
Y = -2
Y = -3
![Page 4: Lesson 10 Equation of a line y = m x + b. (-3,2) (4,-3) Graph point (-3,2) Graph point 4,-3) Draw line Draw vertical side of triangle Draw horizontal](https://reader036.vdocuments.us/reader036/viewer/2022082917/551596a0550346486b8b5abf/html5/thumbnails/4.jpg)
(-3,2)
(4,-3)
x is changing from -3 to 4
Change in x = (4) – (-3)
Change in x = 7
x = -3
x = -2
x = -1
x = 0
x = 1
x = 2
x = 3
x = 4
![Page 5: Lesson 10 Equation of a line y = m x + b. (-3,2) (4,-3) Graph point (-3,2) Graph point 4,-3) Draw line Draw vertical side of triangle Draw horizontal](https://reader036.vdocuments.us/reader036/viewer/2022082917/551596a0550346486b8b5abf/html5/thumbnails/5.jpg)
(-3,2)
(4,-3)
Change in y = -5
Change in x = 7
7
5
7
5
xinchange
yinchangem
7
5mslope
![Page 6: Lesson 10 Equation of a line y = m x + b. (-3,2) (4,-3) Graph point (-3,2) Graph point 4,-3) Draw line Draw vertical side of triangle Draw horizontal](https://reader036.vdocuments.us/reader036/viewer/2022082917/551596a0550346486b8b5abf/html5/thumbnails/6.jpg)
(-3,2)
(4,-3)
Change in y = -5
Change in x = 7
? 7
5 bm
bmxy Slope-intercept form of a line.
![Page 7: Lesson 10 Equation of a line y = m x + b. (-3,2) (4,-3) Graph point (-3,2) Graph point 4,-3) Draw line Draw vertical side of triangle Draw horizontal](https://reader036.vdocuments.us/reader036/viewer/2022082917/551596a0550346486b8b5abf/html5/thumbnails/7.jpg)
(-3,2)
(4,-3)
Change in y = -5
Change in x = 7
? 7
5 bm
bmxy Slope-intercept form of a line.
b is the y-intercept
It appears to be 0. Is it?
bxy 7
5
b )3(7
52
b7
152 b
7
1
7
1
7
5
xy
bmxy