What is the equation of this line in slope-intercept form?

y=−3x−1
y=3x−1
y = 3x + 1
y=−13x−1

Number graph ranging from negative six to six on the x and y axes. A line is drawn on the graph that passes through the labeled points begin ordered pair negative 1 comma 2 end ordered pair and begin ordered pair 1 comma negative 4 end ordered pair

will give 100 points!