Discriminant = square root (b^2 -4*a*c)
square root (64 -4*1*12) =
square root (16) =
4
Therefore it has 2 rational soltions
S=4P+4Q
S=4(P+Q)
S/4=P+Q
S/4-P=Q
Q=S/4-P
Rating plays on Broadway, Poor, good, or excellent would be a type of Ordinal measurement.
You can think or ordinal like order, which could be listing something from best to worst.