a paralell line has same slope
the equation of a line with slope of m and passing through point (x1,y1) is
y-y1=m(x-x1)
we are given
y-3=-1(x+1)
slope=-1
we don't need the point
we want it to pass through (4,2)
x1=4
y1=2
y-2=-1(x-4)
trish is right
solve for y
y-2=-x+4
y=-x+6
both are correct