Soumendra M. answered 02/05/15
Tutor
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Learn and Enjoy Math-Phy-CS-EE
It seems you are saying gradient is 4 and the point is (2, 5)
Such a line is of the form: m = (y-y1)/(x-x1) or (y-y1)=m(x-x1)
Concept: For a straight line gradient is always same, and it is delta(y)/delta(x).
Using the given data, (y -5) = 4(x-2)
y -5 = 4x -8
y -5 + 5 = 4x -8+5
y = 4x -3...Ans