Answer:
y +7 = 3(x +4)
Step-by-step explanation:
You want the point-slope equation of the line with slope 3 through point (-4, -7).
The point-slope equation of a line with slope m through point (h, k) is ...
y -k = m(x -h)
For m=3 and (h, k) = (-4, -7), this is ...
y -(-7) = 3(x -(-4)) . . . . . substitute for m, h, k
y +7 = 3(x +4)