Question

3. What is the domain of the relation: R = {(8. 7), (8. 9), (10, 11), (12. 14)}

Answer 1

The set of points we have is:

`R=\mleft\{\mleft(8,7\mright),(8,9),(10,11),(12,14)\mright\}​`

Let's remember that a point has the general form (x,y), so that the first value in the parentheses is the x-value, and the second value is the y-value.

The domain is the set of values possible for x. In this case, the domain will be all of the x-values of all of the given points.

Domain: {8, 10, 12}

Answer: {8, 10, 12}