Folks, below are the questions from your textbook that will help you revise many concepts from previous topics we have learned and also to help stretch your understandings further.
Once again, be sure to do these in your homework journals and be sure to indicate which exercise number and which question number you are attempting. You need not copy the questions. There are a total of 16 questions and I suggest that you do them gradually over the break. Please avoid doing all the questions at the last minute, you will needlessly suffer if you do so. You can use the blog to post queries or to discuss your process with your peers.
Page 155, Ex. 7.4
# 2, 7, and 8
Page 157, Ex. 7.5
# 5, 9, and 12
Page 152, Ex. 7.3
# 2, 3, and 7
Page 146, Ex 7.1
# 3, 6 and 7
Page 149, Ex. 7.2
# 5 and 7
Page 163, Ex 7.6
# 14
Page 165, Ex. 7.7
# 4
Once again, be sure to do these in your homework journals and be sure to indicate which exercise number and which question number you are attempting. You need not copy the questions. There are a total of 16 questions and I suggest that you do them gradually over the break. Please avoid doing all the questions at the last minute, you will needlessly suffer if you do so. You can use the blog to post queries or to discuss your process with your peers.
sir in exercise 7.5 q12 i dont get how to prove it infact i dont how to solve it.please help
ReplyDeleteneither do i understan, how to prove it when there are 3 lines at the same point ?? :(
ReplyDeleteSame here guys!
ReplyDeleteWell, most of the time you've done intersection point questions using simultaneous equations with PAIRS of equations. So here you have three equations and that is what seems to be confusing. But, you can still solve two equations at a time and check that all combinations of pairs give the same x and y values. So I don't see it as a complicated question.
ReplyDeleteThink about the maximum and the minimum number of intersection points you can have with three lines. That may help you understand the problem too. We know that the gradients of all three lines are different so they must intersect with each other, but at how many points? You just have to show that no matter what, those three lines are intersecting at the same point. So solve all combinations of simultaneous equations and you should be good to go.
sir in ex 7.4 question 8
ReplyDeletewe have to find the possible valuess of t so will we use the quadratic formulae??
Simran, if you get a quadratic equation as a result of plugging in the values to your equation then you can solve it in two ways: one is by using the quadratic formula and the other is by using factoring. Use what you find easiest. Just out of curiosity, what equation are you getting?
ReplyDeleteyou were right about q 6 of ex 7.1 . i had copied one value wrong. -1 was supposed to be +1. now i am getting the correct answer:)
ReplyDeleteanother thing about q 5 of ex 7.2 pg 149. it says to prove that the parallelogram is a rhombus. a rhombus is supposed to have 4 equal sides kind of like a diamond or square without right angles. but this parallelogram dosent have equal sides. so do i just write not a rhombus?