confusedchildren
Badges: 9
Rep:
?
#1
Report Thread starter 1 year ago
#1
  1. 12. The line y= 3x + 4 and y = 2x + 6 intersect at the point M. Line N goes through the point M and is parallel to the line y = ½x + 6. Find the equation of line N.

How do you find out M
0
reply
RDKGames
Badges: 20
Rep:
?
#2
Report 1 year ago
#2
(Original post by confusedchildren)
  1. 12. The line y= 3x + 4 and y = 2x + 6 intersect at the point M. Line N goes through the point M and is parallel to the line y = ½x + 6. Find the equation of line N.

How do you find out M
You find M by making the y coordinates equation to each other for both equations, since it's the point of intersection.
0
reply
steveeem
Badges: 14
Rep:
?
#3
Report 1 year ago
#3
(Original post by RDKGames)
You find M by making the y coordinates equation to each other for both equations, since it's the point of intersection.
Also 2 parallel lines have the same gradient so use that
0
reply
confusedchildren
Badges: 9
Rep:
?
#4
Report Thread starter 1 year ago
#4
(Original post by RDKGames)
You find M by making the y coordinates equation to each other for both equations, since it's the point of intersection.
i did 3x+4= 2x+6 so then i got x=10 so what do i do with that?
0
reply
confusedchildren
Badges: 9
Rep:
?
#5
Report Thread starter 1 year ago
#5
(Original post by steveeem)
Also 2 parallel lines have the same gradient so use that
oh yeah thanks
0
reply
steveeem
Badges: 14
Rep:
?
#6
Report 1 year ago
#6
(Original post by confusedchildren)
i did 3x+4= 2x+6 so then i got x=10 so what do i do with that?
substitute that x value into either of the equations to get the y co ordinate
0
reply
confusedchildren
Badges: 9
Rep:
?
#7
Report Thread starter 1 year ago
#7
(Original post by steveeem)
substitute that x value into either of the equations to get the y co ordinate
and then work out M by substituting the x and y into the y = 1/2 x + c equation?
0
reply
steveeem
Badges: 14
Rep:
?
#8
Report 1 year ago
#8
(Original post by confusedchildren)
and then work out M by substituting the x and y into the y = 1/2 x + c equation?
yeah
0
reply
confusedchildren
Badges: 9
Rep:
?
#9
Report Thread starter 1 year ago
#9
(Original post by steveeem)
yeah
okay thanks also do you know how to work out
A is (1, 7) and B is (3, 1). Find the equation of the straight line which passes through the midpoint of AB and which is perpendicular to 5y + x = 7. Give your answer in the form y = mx + c.
0
reply
steveeem
Badges: 14
Rep:
?
#10
Report 1 year ago
#10
(Original post by confusedchildren)
okay thanks also do you know how to work out
A is (1, 7) and B is (3, 1). Find the equation of the straight line which passes through the midpoint of AB and which is perpendicular to 5y + x = 7. Give your answer in the form y = mx + c.
find the coordinates of the midpoint.
Rearrange 5y +x=7 to y =mx+c form, find m. It is perpendicular so use the -1/m ting and then substitute them both into the y = mx+c

And can i just ask what year your in im assuming year 12?
0
reply
confusedchildren
Badges: 9
Rep:
?
#11
Report Thread starter 1 year ago
#11
(Original post by steveeem)
find the coordinates of the midpoint.
Rearrange 5y +x=7 to y =mx+c form, find m. It is perpendicular so use the -1/m ting and then substitute them both into the y = mx+c

And can i just ask what year your in im assuming year 12?
nope im year 11 XD wbu
0
reply
steveeem
Badges: 14
Rep:
?
#12
Report 1 year ago
#12
(Original post by confusedchildren)
nope im year 11 XD wbu
ah ok that makes a lil bit more sense on why you didnt know some of the stuff. im in year 13

and are those regular maths gcse questions cos i didnt even know we had to know the parallel and perpendicular line things. Then aagain i got like 60% in the exam
0
reply
confusedchildren
Badges: 9
Rep:
?
#13
Report Thread starter 1 year ago
#13
(Original post by steveeem)
ah ok that makes a lil bit more sense on why you didnt know some of the stuff. im in year 13

and are those regular maths gcse questions cos i didnt even know we had to know the parallel and perpendicular line things. Then aagain i got like 60% in the exam
Yeah i struggle so much with maths and its homework our teacher gives us too much like we cant even do our own revision. Also 60% is actually good ngl And cool what did u take for A level?
0
reply
steveeem
Badges: 14
Rep:
?
#14
Report 1 year ago
#14
(Original post by confusedchildren)
Yeah i struggle so much with maths and its homework our teacher gives us too much like we cant even do our own revision. Also 60% is actually good ngl And cool what did u take for A level?
Maths physics and computer science. For me for some reason school got soooooo much easier with A levels than gcses
(with the 60% i just mean i only knew like 60% of the stiff and that probably wasnt the lines~)
0
reply
confusedchildren
Badges: 9
Rep:
?
#15
Report Thread starter 1 year ago
#15
(Original post by steveeem)
Maths physics and computer science. For me for some reason school got soooooo much easier with A levels than gcses
(with the 60% i just mean i only knew like 60% of the stiff and that probably wasnt the lines~)
Yeye its probably because you get to drop half of the subjects from year 11 I wanna do medicine so i kinda need to take chemistry but im awful at it so idk what im going to do
0
reply
steveeem
Badges: 14
Rep:
?
#16
Report 1 year ago
#16
(Original post by confusedchildren)
Yeye its probably because you get to drop half of the subjects from year 11 I wanna do medicine so i kinda need to take chemistry but im awful at it so idk what im going to do
ooof. yeah i know someone who wants to do medicine but didnt take chemistry so cant. Literally everyone i know says chemistry is their hardest subject. Just make that a priority and im sure you will be alright.
If you ever need help with any maths problems just tag me in the post and ill probably reply pretty quick if its after school time (I have no idea how to tag people but there is a way)
0
reply
confusedchildren
Badges: 9
Rep:
?
#17
Report Thread starter 1 year ago
#17
(Original post by steveeem)
ooof. yeah i know someone who wants to do medicine but didnt take chemistry so cant. Literally everyone i know says chemistry is their hardest subject. Just make that a priority and im sure you will be alright.
If you ever need help with any maths problems just tag me in the post and ill probably reply pretty quick if its after school time (I have no idea how to tag people but there is a way)
Yeye lets hope so i might take all 3 sciences tbh or 2 sciences and english lit idk. I literally joined like 2 days ago idek how you tage ill just PM you So have you thought ab uni?
0
reply
steveeem
Badges: 14
Rep:
?
#18
Report 1 year ago
#18
(Original post by confusedchildren)
Yeye lets hope so i might take all 3 sciences tbh or 2 sciences and english lit idk. I literally joined like 2 days ago idek how you tage ill just PM you So have you thought ab uni?
for medicine 3 sciences would be better but alot harder

Yeah unis are pretty much all i have thought about, i wanna do physics but alot of the good unis are up north

but im applying to Durham, manchester, warwick, and bristol as insurance (cos i get contextual offer ) and i have no idea what to pick for the 5th. Durham is my top choice in terms of how good it is but i feel like there will be tons of posh people and no nightlife so im just so confused about what to do. tbh i have no reason to stress about cos ive not even got an offer yet and dont know if i will but stillllllllllllllll
0
reply
confusedchildren
Badges: 9
Rep:
?
#19
Report Thread starter 1 year ago
#19
(Original post by steveeem)
for medicine 3 sciences would be better but alot harder

Yeah unis are pretty much all i have thought about, i wanna do physics but alot of the good unis are up north

but im applying to Durham, manchester, warwick, and bristol as insurance (cos i get contextual offer ) and i have no idea what to pick for the 5th. Durham is my top choice in terms of how good it is but i feel like there will be tons of posh people and no nightlife so im just so confused about what to do. tbh i have no reason to stress about cos ive not even got an offer yet and dont know if i will but stillllllllllllllll
Oh yeah a dead uni would be awful ngl whereabouts are you if you dont mind me asking?
0
reply
steveeem
Badges: 14
Rep:
?
#20
Report 1 year ago
#20
(Original post by confusedchildren)
Oh yeah a dead uni would be awful ngl whereabouts are you if you dont mind me asking?
london so having nothing to do would be a big sad change of pace
0
reply
X

Quick Reply

Attached files
Write a reply...
Reply
new posts
Back
to top
Latest
My Feed

See more of what you like on
The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

Personalise

University open days

  • University of East Anglia
    Undergraduate Open Day Undergraduate
    Sun, 20 Oct '19
  • University for the Creative Arts
    Undergraduate Open Day Undergraduate
    Sun, 20 Oct '19
  • University of Gloucestershire
    Undergraduate Open Day Undergraduate
    Sun, 20 Oct '19

Have you made up your mind on your five uni choices?

Yes I know where I'm applying (67)
66.34%
No I haven't decided yet (21)
20.79%
Yes but I might change my mind (13)
12.87%

Watched Threads

View All