Question

For \(R=\{(1,4),(1,5),(2,4),(2,5),(3,4),(3,5),(4,5)\}\) from \(A\) to \(B=\{1,4,5\}\), which statement is correct?

Options

• Range \(=\{1,4,5\}\) and codomain \(=\{4,5\}\).

• Range \(=\{1,4,5\}\) and codomain \(=\{1,2,3,4\}\).

• Range \(=\{4,5\}\) and codomain \(=\{1,4,5\}\).

• Range \(=\{1,2,3,4\}\) and codomain \(=\{1,4,5\}\).

Answer 1

The second components that occur are \(4\) and \(5\), so the range is \(\{4,5\}\). The codomain is the given target set \(B=\{1,4,5\}\).