The coaches of a group of debate teams answered a survey about hours of debate, team practice and number of team wins. The graph shows the results of this survey. Which equation best represents the line of best fit?
a

y = 7x + 5

b

y = -2x + 1

c

y = 4x + 2

d

y = 4x + 8

The coaches of a group of debate teams answered a survey about hours of debate team practice and number of team wins The graph shows the results of this survey class=