CBSE Class 11-science Answered
how i calculate the equations of straight lines
Asked by | 06 Nov, 2009, 08:21: PM
Expert Answer
For calculating the equations of straight lines we need to be given data in one of the following forms
(i) Point slope form : a point on the line and its slope is given then the equation of line is given by
(y-y1)=m(x-x1)
(ii) Two point form: when two points on the line are given(y-y1)=(y2-y1)(x-x1)/(x2-x1)
(iii)slope intercept form: slope and intercept is given
y-c=m(x-0)
(iv) intercept form: when intercepts on the axes are given so x/a+y/b =1
(v) normal form
So depending what sort of data is given you can find the equation of line
Answered by | 24 Nov, 2009, 10:30: AM
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