Answer:
1st option
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Here m = - 3 , so
y = - 3x + c ← is the partial equation
To find c substitute (- 1, 6 ) into the partial equation
6 = 3 + c ⇒ c = 6 - 3 = 3
y = - 3x + 3 ← equation of line
