lesson 7.4 to 7.6

Lesson 7.4, p398, ex 3.

-       This is a classic math problem. Click on the link below to watch a video just like example 3 on p398. Our math book uses “A” for Airplane, but in the video the teacher chose “P” for Plane. Other than this minor difference it’s the exact same problem.

-       Remember that the wind will affect the  total speed (or ground speed or still air speed – all of these mean the same thing) of the plane.

-       If Plane goes with the wind, then Total Speed = speed of Plane  + speed of the Wind.... that is:  S=  P + W

-       If Plane goes against the wind, then it will go slower, so Total Speed = speed of Plane – speed of Wind.... that is: S = P – W .

-       Check out the video. It’s a little complicated but hang in there. You can do it!  http://www.youtube.com/watch?v=yla2bk7jB_A

 

Lesson 7.5 A

Read p 405, ex 1, 2.

Graphing inequalities (this is a quick, short video. Watch it more than once if needed).   http://www.youtube.com/watch?v=jU1d4D8ahYY

 

Lesson 7.5 B. objective 2, p406, ex 3.

Read ex 3 on p406.

Modeling real-world situation  http://www.phschool.com/atschool/academy123/english/academy123_content/wl-book-demo/ph-237s.html 

Lesson 7.6 A,  objective 1

Graphing a system of linear inequalities. http://www.phschool.com/atschool/academy123/english/academy123_content/wl-book-demo/ph-238s.html

Writting a system of inequalities http://www.phschool.com/atschool/academy123/english/academy123_content/wl-book-demo/ph-239s.html 

 

Lesson 7.6 B,  objective 2.

Using a system of linear inequalities - http://www.phschool.com/atschool/academy123/english/academy123_content/wl-book-demo/ph-240s.html

 

Lessons 7.4c to 7.5

Lesson 7.4 C , p398, ex 3. Read below before watching the video.

-       This is a classic math problem. Click on the link below to watch a video just like example 3 on p398. Our math book uses "A" for Airplane, but in the video the teacher chose "P" for Plane. Other than this minor difference it's the exact same problem.

-       Remember that the wind will affect the  total speed (or ground speed or still air speed – all of these mean the same thing) of the plane.

-       If Plane goes with the wind, then Total Speed = speed of Plane  + speed of the Wind.... that is:  S=  P + W

-       If Plane goes against the wind, then it will go slower, so Total Speed = speed of Plane – speed of Wind.... that is: S = P – W .

-       Check out the video. It's a little complicated but hang in there. You can do it!  http://www.youtube.com/watch?v=yla2bk7jB_A

 

Lesson 7.5 A, objective 1,

-       Read p 405, ex 1, 2.

-       Graphing inequalities (this is a quick, short video. Watch it more than once if needed).   http://www.youtube.com/watch?v=jU1d4D8ahYY

 

Lesson 7.5 B, objective 2, p406, ex 3.

-       Read ex 3 on p406.

-       Modeling real-world situation  http://www.phschool.com/atschool/academy123/english/academy123_content/wl-book-demo/ph-237s.html

 

Videos 7.1 to 7.4

Lesson 7.1

 

Ex 1 http://www.phschool.com/atschool/academy123/english/academy123_content/wl-book-demo/ph-228s.html

Ex 2, 3. http://www.phschool.com/atschool/academy123/english/academy123_content/wl-book-demo/ph-229s.html

Ex 4, 5  http://phschool.com/webcodes10/index.cfm?fuseaction=home.gotoWebCode&wcprefix=ate&wcsuffix=0701#

 

Lesson 7.2 (2 videos)

Solving by substitution  http://phschool.com/webcodes10/index.cfm?fuseaction=home.gotoWebCode&wcprefix=ate&wcsuffix=0702#

Solving real-world problems by substitution  http://phschool.com/webcodes10/index.cfm?fuseaction=home.gotoWebCode&wcprefix=ate&wcsuffix=0702# 

 

Lesson 7.3

Solving by elimination  http://phschool.com/webcodes10/index.cfm?fuseaction=home.gotoWebCode&wcprefix=ate&wcsuffix=0703#

Solving by elimination (using multiplication first)  http://phschool.com/webcodes10/index.cfm?fuseaction=home.gotoWebCode&wcprefix=ate&wcsuffix=0703#

 

Lesson 7.4

Write and solve a system  http://phschool.com/webcodes10/index.cfm?fuseaction=home.gotoWebCode&wcprefix=ate&wcsuffix=0704#

Find a break even point  http://phschool.com/webcodes10/index.cfm?fuseaction=home.gotoWebCode&wcprefix=ate&wcsuffix=0704# 

 

Answers to Chap 6 review worksheet.

videos 7.1 to 7.4

Lesson 7.1

 

Ex 1 http://www.phschool.com/atschool/academy123/english/academy123_content/wl-book-demo/ph-228s.html

 

Ex 2, 3. http://www.phschool.com/atschool/academy123/english/academy123_content/wl-book-demo/ph-229s.html

 

Ex 4, 5  http://phschool.com/webcodes10/index.cfm?fuseaction=home.gotoWebCode&wcprefix=ate&wcsuffix=0701#

 

Lesson 7.2

Solving by substitution  http://phschool.com/webcodes10/index.cfm?fuseaction=home.gotoWebCode&wcprefix=ate&wcsuffix=0702#

 

Solving real-world problems by substitution  http://phschool.com/webcodes10/index.cfm?fuseaction=home.gotoWebCode&wcprefix=ate&wcsuffix=0702# 

 

Lesson 7.3

Solving by elimination  http://phschool.com/webcodes10/index.cfm?fuseaction=home.gotoWebCode&wcprefix=ate&wcsuffix=0703#

 

Solving by elimination (using multiplication first)  http://phschool.com/webcodes10/index.cfm?fuseaction=home.gotoWebCode&wcprefix=ate&wcsuffix=0703#

 

Lesson 7.4

Write and solve a system  http://phschool.com/webcodes10/index.cfm?fuseaction=home.gotoWebCode&wcprefix=ate&wcsuffix=0704#

 

Find a break even point  http://phschool.com/webcodes10/index.cfm?fuseaction=home.gotoWebCode&wcprefix=ate&wcsuffix=0704# 

 

Videos 6.5 to 6.8

 Blog… Hint, press CTRL and click on the link to open it in a new tab.

 

Videos of lesson 6.5 – writing linear equations using data.

A.    Graphing linear equations using point-slope form

B.    Writing an equation in point-slope form using a point and the slope

C.    Writing an equation in point-slope form from a graph

D.   Writing a linear equation using a table

E.    Determining whether a relationship shown by data is linear

 

 

Videos for lesson 6.6 – parallel and perpendicular lines.

A.    Determining whether lines are parallel

B.    Writing equations of parallel lines

C.    Determining whether lines are perpendicular

D.   Writing equations of perpendicular lines

 

 

Videos for lesson 6.7 – Trend line and scatter plot.

http://phschool.com/webcodes10/index.cfm?fuseaction=home.gotoWebCode&wcprefix=ate&wcsuffix=0607

A.    Writing an equation for a trend line

B.    Writing an equation for a line of best fit

Videos 6.8

A.    Graphing a vertical translation of an absolute value equation

B.    Writing an equation for the vertical translation of an absolute value equation

C.    Graphing a horizontal translation of an absolute value equation

D.   Writing an equation for the horizontal translation of an absolute value equation

 

Videos 6.5 to 6.8

 Blog… Hint, press CTRL and click on the link to open it in a new tab.

 

Videos of lesson 6.5 – writing linear equations using data.

A.    Graphing linear equations using point-slope form

B.    Writing an equation in point-slope form using a point and the slope

C.    Writing an equation in point-slope form from a graph

D.   Writing a linear equation using a table

E.    Determining whether a relationship shown by data is linear

 

 

Videos for lesson 6.6 – parallel and perpendicular lines.

A.    Determining whether lines are parallel

B.    Writing equations of parallel lines

C.    Determining whether lines are perpendicular

D.   Writing equations of perpendicular lines

 

 

Videos for lesson 6.7 – Trend line and scatter plot.

http://phschool.com/webcodes10/index.cfm?fuseaction=home.gotoWebCode&wcprefix=ate&wcsuffix=0607

A.    Writing an equation for a trend line

B.    Writing an equation for a line of best fit

Videos 6.8

A.    Graphing a vertical translation of an absolute value equation

B.    Writing an equation for the vertical translation of an absolute value equation

C.    Graphing a horizontal translation of an absolute value equation

D.   Writing an equation for the horizontal translation of an absolute value equation