Urgent: Paper 22 Math Question 10 or 11

[Shady Omar]

Urgent: Paper 22 Math Question 10 or 11

Guys I'm not sure which question it was exactly but you had to find the gradient (k) which was parallel to another line..

SO what was k? 5 or 2.5? please answer asap I wanna know if I got it right or not ;p

 

[Lost_Life]

um there was a question in my paper saying:
find the k in these equations of lines:
5x+4y=10
14=2y-kx

What i did is i simply rearranged them, then i put (-5) as k because it is a parallel line therefore gradients are equal right????
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[suhaib05]

Can you remind us of the equations of the lines? I can't remember them now.

 

[Shady Omar]

I think it was 4y=5x-10
2y=kx-4
Im not 100% sure though

 

[Lost_Life]

so is it -5! ???

 

[Shady Omar]

I got 5 somehow:/

 

[ahmedali1]

it was 2.5

 

[Martee100]

yea it was 2.5 because the gradient was 1.125!

 

[Jaggia]

63800000000km^2 u had to convert to m^2? right. so it becomes 6.4 x 10^4

 

[Lost_Life]

yup

 

[Someone2]

i got k= -5^4.... cus i divided everything with 4 to get y=-5^4-2.5 :S

 

[Lost_Life]

well... as long as you show your working and prove that parallel lines have the same gradient i guess they'll credit you

 

[Jisu]

well... as long as you show your working and prove that parallel lines have the same gradient i guess they'll credit you

Hope so..
i wrote 1.25

 

[Lost_Life]

yup they will dont worry

 

[Razo513]

i rearranged correctly , but then i got 5x and the one down was kx i frgt completely abt the y so i did k=5

 

[Lost_Life]

yeah me too

 

[Lilpumpkin]

63800000000km^2 u had to convert to m^2? right. so it becomes 6.4 x 10^4

what do we have to make it in standard form????????