Question

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

Options

• 1

• 2

• 4

• 3

Answer 1

2

Explanation:

Different form of equation of straight lines are

Slope intercept form, y = mx + c, Parameter = 2

Intercept form, `x/a + y/b` = 1, Parameter = 2

One-point form, y – y₁ = m(x – x₁), Parameter = 2

Normal form, x cos w + y sin w = P, Parameter = 2