Qualification > Queries

ALL OCT/NOV PAPER DISCUSSION HERE!

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asdf123:
how -10???

@d!_†oX!©:

--- Quote from: asdf123 on October 29, 2009, 11:12:52 am ---how -10???

--- End quote ---
well i'll have to explain the whole thing???
see i vaguely remember...the eq of the line was y=2x+8
at A y was 0...so putting in the valu e of y as 0..u get x...which was coming out to be -4
den A and B were 9 points away!!
so x at  B become 5
and at B also th y was 0
so u take out c from 0=2(5)+c
this gives u c=-10
u understood???

Ghost Of Highbury:
yea..i did the same thing..

just to make this point clear..

"at A y was 0...so putting in the valu e of y as 0..u get x...which was coming out to be -4
den A and B were 9 points away!!"

if u r unsure abt that

try this formula - a tedious one

= 9

which makes it

x=5

the one above is a cumbersome method to solve for it..just 4 d explanation

@d!_†oX!©:
dude can u explain the above formula once again!!

Ghost Of Highbury:

--- Quote from: @d!_†oX!© on October 29, 2009, 11:35:34 am ---dude can u explain the above formula once again!!

--- End quote ---

sure..its dere for us in add. math

maybe its for maths too..

the distance between 2 points is

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