Answer :
equation of straight line passing through P(0,0) and Q(5,2) is
2x - 5y = 0;
let there be 2 points as P(0,0) and Q(5,2)
Then the equation of the straight line is
Using two-point form:
(y - 0) = (2 - 0)/(5 - 0) (x-0);
y = 2/5 x
cross multiplying
5y = 2x
2x - 5y = 0;
slope of line passing through point R(2,5) and (0,-4)
m = 5-(-4)/2-0
m = 9/2;
the slope of line passing through points S(2,5) and T(1,4)
m = 5-4/2-1
m = 1;
Slope of line passing through L(-9,6) and M(-3,9)
m = 9 - 3/ -3 - (-9)
m = 6/ -3 + 9
m = 6/6
m=1;
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