7pts) Assume that a parallelization optimization across two cores for an originally serial program provides an improvement factor of K for the X% of execution that it applies to, but requires an additional Y% of the original execution worth of computation to be performed in order to apply the optimization. Assuming that the tradeoff is worthwhile (i.e. speedup >1) what are the improvements in throughput and latency over the original serial code if two copies of the two-way parallelized program are run across four cores? Express your throughput improvement as a function of your latency improvement.