For specifying a straight line, how many geomatrical parameters should be known ?

Options

A. 1
B. 2
C. 4
D. 3

Answer

B

Explanation

Equation of straight lines are
`y=mx+ c`, Parameter =2 .....(i)
`(x)/(a)+(y)/(b)=1`,Parameter =2 .....(ii)
`y-y_1=m(x-x_1)`, Parameter =2 ......(iii)
and
`xcosw+ysinw=p`, Parameter =2 .......(iv)
it is clear that from Eqs. (i), (ii), (iii), and (iv), for specifying a straight line clearly two parameters should be known.