Friday, July 31, 2009

I have to change quadrants into standard form how do i do it?

my first problem is;


(0,0) (1,4)





standard form is ;


Ax+By=C








how do i do it?

I have to change quadrants into standard form how do i do it?
first find the slope. use m=(y2-y1)/(x2-x1). this gives us 4-0/1-0 which = 4/1 or a slope of 4.





now put it in point- slope form. y-y1=m(x-x1) giving y-4=4(x-1).





next distribute the 4 giving y-4=4x-4. now subtract y from both sides giving -4=4x-y-4.





finally, add 4 to each side giving 4x-y=0.





A=4, B=-1 and C=0


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