tag:blogger.com,1999:blog-7991892050140229718.post130898141237031504..comments2023-06-21T01:46:06.810-07:00Comments on 2013 S3-09 Maths Blog: Quadratic - Practice 10 (Shaun Ng)farrellnahhttp://www.blogger.com/profile/12822697736062086588noreply@blogger.comBlogger10125tag:blogger.com,1999:blog-7991892050140229718.post-80670314477932185102013-03-11T21:48:37.251-07:002013-03-11T21:48:37.251-07:00Me: SHAUNYYYYYYYYYYYYY Yes your D looks like 0 lol...Me: SHAUNYYYYYYYYYYYYY Yes your D looks like 0 lol. You should sub in the value of K into D = (k+1)^2 - 4(1)(k) to show that D > 0. Other than that, quite clearly explained but lol pic very blur.'<br /><br />Dawn: I don't understand cause I'm very blur... I still understand some parts of it though. At first I didn't know you had to factorise D=k^2-2k+1 [though that's my fault] but basically it's a good explanation. :DDluke-john leehttps://www.blogger.com/profile/16998196081287221029noreply@blogger.comtag:blogger.com,1999:blog-7991892050140229718.post-7611131892360664702013-03-11T21:43:59.002-07:002013-03-11T21:43:59.002-07:00Mathematical concepts applied are sound and relate...Mathematical concepts applied are sound and relate to the question. Coefficients are also stated clearly.<br />Clear explanation, especially for the last part (k-1)^2 ≥ 0, which makes your proving easier to understand and accept.Anonymoushttps://www.blogger.com/profile/06905317595557509399noreply@blogger.comtag:blogger.com,1999:blog-7991892050140229718.post-34671912236046376222013-03-11T21:43:35.507-07:002013-03-11T21:43:35.507-07:00- Mathematical concept is clearly shown.
- Clarity...- Mathematical concept is clearly shown.<br />- Clarity of explanation is understandable<br />- Organization of thoughts are shown. However, penmanship must improve. Esther Tieyhttps://www.blogger.com/profile/09544310589577435783noreply@blogger.comtag:blogger.com,1999:blog-7991892050140229718.post-76985430657158563172013-03-11T21:43:28.185-07:002013-03-11T21:43:28.185-07:00The concepts are clear, precise and correct.
The e...The concepts are clear, precise and correct.<br />The explanation is clear and good.<br />Work is very neat and organised although D looks like 0 at firstYi Dehttps://www.blogger.com/profile/01387087298856162338noreply@blogger.comtag:blogger.com,1999:blog-7991892050140229718.post-73987219283079841892013-03-11T21:39:21.435-07:002013-03-11T21:39:21.435-07:00D looks like a zero. Other than that, the concept ...D looks like a zero. Other than that, the concept is very clear and is there is no conceptual error. Tobias Tanghttps://www.blogger.com/profile/17823185465007666136noreply@blogger.comtag:blogger.com,1999:blog-7991892050140229718.post-6003754492511872822013-03-11T18:30:53.912-07:002013-03-11T18:30:53.912-07:00Your D looks like 0, so it is not very clear at fi...Your D looks like 0, so it is not very clear at first. Also, you do not state the formula for discriminant before substituting the values in. Answer is accurate and precise and concise.OOOPhttps://www.blogger.com/profile/11628225671877704503noreply@blogger.comtag:blogger.com,1999:blog-7991892050140229718.post-89409389503704849392013-03-11T18:30:33.819-07:002013-03-11T18:30:33.819-07:001.the concepts about the relationship between type...1.the concepts about the relationship between types of roots and the discriminent is vey clear.<br />2.the process is a little complicated,you can leave the "if D>0..."part.<br />3.the organization of the answer is clear and complete,not neat enough ,though.<br /><br /><br /><br />0-0 FULL MARK ANSWER ~Anonymoushttps://www.blogger.com/profile/10616114183349270022noreply@blogger.comtag:blogger.com,1999:blog-7991892050140229718.post-9777257491475401102013-03-11T18:26:24.891-07:002013-03-11T18:26:24.891-07:00The mathematical concepts are sound and the correc...The mathematical concepts are sound and the correct concepts are being used to solve the question.<br />The explanation is clear and good, especially when explaining why (k-1)^2 is more than 0.<br />Presentation is neat and organised, although 'D' looks like '0' at first. jhttps://www.blogger.com/profile/15007806299340194570noreply@blogger.comtag:blogger.com,1999:blog-7991892050140229718.post-33326156229572385422013-03-11T18:24:22.630-07:002013-03-11T18:24:22.630-07:00Your explanation shows good understanding of the m...Your explanation shows good understanding of the mathematical concept used to solve the problem. Your problem is clear and easy to understand. It is systematic and organised, making it easy to read.♪ Jemima ♫https://www.blogger.com/profile/00456984701779763324noreply@blogger.comtag:blogger.com,1999:blog-7991892050140229718.post-74263583826097345432013-03-11T18:24:21.237-07:002013-03-11T18:24:21.237-07:00Answers are quite well organised. Train of thought...Answers are quite well organised. Train of thoughts clearly shown.<br />No conceptual error. <br />- Kai EnLee Kai Enhttps://www.blogger.com/profile/12132999420164870155noreply@blogger.com