1. Find f(x + 1) when f(x) = 2x + 6
2. Find the domain and range of the relation: {(9, 1), (9, - 10), (9, - 1)}.
3. Find the equation of a line passing through the point (7, 6) and parallel to the line y = 3
4. Find f(-14) when f(x) = - 2x + 12
5. Write the equation of the line with slope =4 and containing the point (4, 7)
6. Write the equation of the line passing through the points (8, 8) and (1, 8).