Any straight line in the XY plane can be represented algebraically by an equation of the form
a1x1 + a2x2 + - - - - - - + anxn = b ----------------------- (1)
Where a1, a2 - - - - - - an and b are real constants. An equation of this form is called Linear Equation in the variables x1, x2 - - - - - - xn . The variables in a linear equation are sometimes called Unknown.
Comments