Question

What is the domain and range of this function? {(1,3),(2,6),(3,9),(4,12)}

Answer 1

Answer:

Domain: {1, 2, 3, 4}

Range: {3, 6, 9, 12}

Step-by-step explanation:

In a function the domain represents the values of 'x' and the range represents the values of 'y'.  For any given set of points, they are in the form of (x, y).  So the domain would be the 'x' value in each point and the range is the 'y' value for each point:

Domain: {1, 2, 3, 4}

Range: {3, 6, 9, 12}