{"id":1532,"date":"2019-03-03T16:50:55","date_gmt":"2019-03-03T21:50:55","guid":{"rendered":"http:\/\/blog.newtonchineseschool.org\/wangweidong\/?p=1532"},"modified":"2019-03-02T21:51:39","modified_gmt":"2019-03-03T02:51:39","slug":"math-9-spring-2019-lesson-3-332019","status":"publish","type":"post","link":"http:\/\/blog.newtonchineseschool.org\/wangweidong\/2019\/03\/03\/math-9-spring-2019-lesson-3-332019\/","title":{"rendered":"Math 9, Spring 2019, Lesson 3, 3\/3\/2019"},"content":{"rendered":"<p>We continue our study of vectors.<\/p>\n<p>We can simplify the position of a point P on a plane by the vector OP where O is a reference point on the plane. The vector OP is called the position vector of P with respect to the reference point O. That is, every point on the plane can be represented by its position vector wrt the reference point O.<\/p>\n<p>Then vector PQ = vector OQ \u2013 vector OP.<\/p>\n<p>Furthermore, when we look at the coordinate plane for a point P (x, y), we can use its coordinates x and y to represent its position vector with respect to the origin O. We introduce column vector notation. A column vector is like a special form of a matrix (2 rows, 1 column). All matrix operations apply to column vectors.<\/p>\n<p>We can apply what we have learned about vectors to help us solve geometry problems.<\/p>\n<p>Notice when vector AB = vector DC, it means line AB is parallel to line DC and AB = DC.<\/p>\n<p>Homework:\u00a0<a href=\"http:\/\/blog.newtonchineseschool.org\/wangweidong\/files\/2017\/02\/WorkbookP34.pdf\" target=\"_blank\">Page 1<\/a>,\u00a0<a href=\"http:\/\/blog.newtonchineseschool.org\/wangweidong\/files\/2017\/02\/WorkbookP35.pdf\" target=\"_blank\">Page 2<\/a>,\u00a0<a href=\"http:\/\/blog.newtonchineseschool.org\/wangweidong\/files\/2017\/02\/WorkbookP36.pdf\" target=\"_blank\">Page 3<\/a>,\u00a0<a href=\"http:\/\/blog.newtonchineseschool.org\/wangweidong\/files\/2017\/02\/WorkbookP37.pdf\" target=\"_blank\">Page 4<\/a>,\u00a0<a href=\"http:\/\/blog.newtonchineseschool.org\/wangweidong\/files\/2017\/02\/WorkbookP38.pdf\" target=\"_blank\">Page 5<\/a>,\u00a0<a href=\"http:\/\/blog.newtonchineseschool.org\/wangweidong\/files\/2017\/02\/WorkbookP39.pdf\" target=\"_blank\">Page 6<\/a><\/p>\n<p>Workbook Page 33: # 8, #9, #13, #19 \u2013 #26<\/p>\n","protected":false},"excerpt":{"rendered":"<p>We continue our study of vectors. We can simplify the position of a point P on a plane by the vector OP where O is a reference point on the plane. The vector OP is called the position vector of P with respect to the reference point O. That is, every point on the plane [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0},"categories":[4,20,25,3],"tags":[],"_links":{"self":[{"href":"http:\/\/blog.newtonchineseschool.org\/wangweidong\/wp-json\/wp\/v2\/posts\/1532"}],"collection":[{"href":"http:\/\/blog.newtonchineseschool.org\/wangweidong\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/blog.newtonchineseschool.org\/wangweidong\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/blog.newtonchineseschool.org\/wangweidong\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/blog.newtonchineseschool.org\/wangweidong\/wp-json\/wp\/v2\/comments?post=1532"}],"version-history":[{"count":1,"href":"http:\/\/blog.newtonchineseschool.org\/wangweidong\/wp-json\/wp\/v2\/posts\/1532\/revisions"}],"predecessor-version":[{"id":1533,"href":"http:\/\/blog.newtonchineseschool.org\/wangweidong\/wp-json\/wp\/v2\/posts\/1532\/revisions\/1533"}],"wp:attachment":[{"href":"http:\/\/blog.newtonchineseschool.org\/wangweidong\/wp-json\/wp\/v2\/media?parent=1532"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/blog.newtonchineseschool.org\/wangweidong\/wp-json\/wp\/v2\/categories?post=1532"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/blog.newtonchineseschool.org\/wangweidong\/wp-json\/wp\/v2\/tags?post=1532"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}