Chapter 2 - Functions, Equations, and Graphs - 2-2 Direct Variation - Practice and Problem-Solving Exercises - Page 73: 65

Domain: $\left\{1, 2, 3, 4\right\}$ Range: $\left\{7, 8, 9, 10\right\}$

The domain is the set all of x values (first coordinates) while the range is the set of all of y values (second coordinates). Thus, Domain: $\left\{1, 2, 3, 4\right\}$ Range: $\left\{7, 8, 9, 10\right\}$