A graph has minutes played on the x-axis, and points scored on the y-axis. A line goes through points (8, 6) and (30, 21). Which is the equation of the line of best-fit? y = StartFraction 15 Over 22 EndFraction x StartFraction 6 Over 11 EndFraction y = StartFraction 15 Over 22 EndFraction x StartFraction 43 Over 11 EndFraction y = StartFraction 22 Over 15 EndFraction x minus StartFraction 86 Over 15 EndFraction y = StartFraction 22 Over 15 EndFraction x minus four-fifths