## Precalculus (6th Edition)

$\color{blue}{B \cap A = \left\{4, 8\right\}}$
Given: $A=\left\{1, 3, 4, 5, 7, 8\right\}$ $B=\left\{2, 4, 6, 8\right\}$ RECALL: $B \cap A$, the intersection of sets B and A, is the set the contains the elements that are common to sets A and B. Notice that the elements common to A and B are: 4 and 8 Thus, $\color{blue}{B \cap A = \left\{4, 8\right\}}$