# For specifying a straight line, how many geometrical parameters should be known?A. 1B. 2C. 4D. 3

Different form of equation of straight line are

Intercept form:

where, a and b are the intercepts on the axis

In intercept form, we need two parameters ‘a’ and ‘b’ to specify a straight line

Slope – Intercept Form:

y = mx + c

where m = tan θ, and θ is the angle made with positive x – axis

and c is the intercept on y – axis.

So, we need two parameters ‘m’ and ‘c’ to specify a straight line.

Hence, the correct option is (b)

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