The equation y = 8.1x models the relationship between the number of hours Alexander works, x, and the dollar amount he earns, y. Which is the graph of the equation y = 8.1x? A coordinate grid with a curved line starting at (1, 8) curving down and to the right passing through (2, 4), (4, 2), and (7, 1)

A coordinate grid with a straight line starting at (0, 0) and (1, 8).

A coordinate grid with a straight line starting at (0, 2) passing through (2, 4) and (6, 8).