Qualification > Math
IGCSE MATHS Doubts
Shazizzzle:
--- Quote from: deadman786 on May 11, 2010, 10:35:26 pm ---Shaz 1 final thing say if I take the coefficient of x to 5, then it'll p=2.5 and q= -14.25 right????
By the way, SAR right guess ;D.
--- End quote ---
Yes. That's correct.
Don't ask me how. :P Naeem did it like this. On one of the days you were absent. :P
haha. you've used deadman786 on chappa too ;)
the_grim_reaper:
I did it in my copy but I couldn't read my writing :P. One more thing, if coefficient of x^2 isn't 1 then we first divide every number in the eq. by it????? :(
Shazizzzle:
--- Quote from: deadman786 on May 11, 2010, 10:47:13 pm ---I did it in my copy but I couldn't read my writing :P. One more thing, if coefficient of x^2 isn't 1 then we first divide every number in the eq. by it????? :(
--- End quote ---
Yes, the whole thing, I believe, just like completing square method.
Shazizzzle:
--- Quote from: polltery on May 11, 2010, 10:49:22 pm ---Plzzz help me here! :-S
--- End quote ---
Umm, parallel lines have the same gradient i.e coefficient of x. So... m=2.
3 is the y intercept. So, B (0, 3)
AB is 7.
7-3 = 4.
So, at B, y value is -4.
So c= -4
y=mx + c
y=2x -4
Shazizzzle:
SORRY, 2nd line, So, A (0, 3) [not B]
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