Answer:
2x + y = - 5
Explanation:
The equation of a line in point- slope form is
y - b = m(x - a)
where m is the slope and (a, b) a point on the line
Here m = - 2 and (a, b) = (- 1, - 3 ) , thus
y - (- 3) = - 2(x - (- 1)), that is
y + 3 = - 2(x + 1) ← distribute
y + 3 = - 2x - 2 ( add 2x to both sides )
2x + y + 3 = - 2 ( subtract 3 from both sides )
2x + y = - 5