Option (4)
Step-by-step explanation:
Let the equation of the linear function is,
f(x) = mx + b
where m = slope of the line
b = y - intercept
Since slope of a line passing through two points and is defined by,
m =
Slope the line passing through (0, 6) and (3, 0),
m =
m = -2
y-intercept given in the graph 'b' = -6
Therefore, linear function will be,
f(x) = -2x - 6
Option (4) will be the answer.