3x2−x−6=y3x^{2} - x - 6 = y3x2−x−6=y
a=3,b=−1,c=−6a = 3, b = -1, c = -6a=3,b=−1,c=−6
Minimum value of x = −b2a= −(−1)6= 16\;\frac{-b}{2a} = \;\frac{-(-1)}{6} = \;\frac{1}{6}2a−b=6−(−1)=61
y( 16)=3( 162)− 16−6=−6 112y\left(\;\frac{1}{6}\right) = 3\left(\;\frac{1}{6}^{2}\right) - \;\frac{1}{6} - 6 = -6\;\frac{1}{12}y(61)=3(612)−61−6=−6121
