Find an equation of the line passing through the point (−1, 3) and parallel to the line joining the points (−3, 4) and (4, −1).

Answer 1

find the slope between the points (−3, 4) and (4, −1), call it m

then using the other point:
y-3 = m(x+1)
put in your value of m, expand it, and change it to whatever form is needed