JKL has vertices J(10, 5), K(2, 8), and L(4, 9). It is translated right 5 units and up 4 units. What are the coordinates of J', K', and L'?

a. J'(15, 9), K'(12, 7), L'(9, 13)
b. J'(15, 9), K'(7, 12), L'(9, 13)
c. J'(14, 10), K'(7, 12), L'(10, 12)
d. J'(15, 5), K'(7, 8), L'(9, 9)

To translate a point right 5 units and up 4 units, we add 5 to the x-coordinate and 4 to the y-coordinate. Therefore:

- J' = (10+5, 5+4) = (15, 9)
- K' = (2+5, 8+4) = (7, 12)
- L' = (4+5, 9+4) = (9, 13)

The correct answer is b. J'(15, 9), K'(7, 12), L'(9, 13).