The scatterplot shows the time it takes for a new hot plate to boil various amounts of water, and one lab group’s attempt at a line of best fit. A graph shows water (cups) labeled 1 to 9 on the horizontal axis and time (minutes) on the vertical axis. A line increases from 1 to 8.

Raquel throws darts at a coordinate grid centered at the origin. Her goal is to create a line of darts. Her darts actually hit the coordinate grid at (–5, 0), (1, –3), (4, 5), (–8, –6), (0, 2), and (9, 6). Which equation best approximates the line of best fit of the darts?

y = 0.6x + 0.6
y = 0.1x + 0.8
y = 0.8x + 0.1
y = 0.5x + 0.6