f(x) = ax + b = 1.grads polynomium (lineær funkion)
a x 2 + b x + c = 2. g r a d s p o l y n o m i u m {\displaystyle ax^{2}+bx+c=2.gradspolynomium} (2. grads ligning)
a x 3 + b x 2 + c x + d = 3. g r a d s p o l y n o m i u m {\displaystyle ax^{3}+bx^{2}+cx+d=3.gradspolynomium}
