Question 390156
1.  The slope through (-2, -1) and (4,3) is (3--1)/(4--2) = 4/6 = 2/3.  The equation is then {{{y-3 = 2(x--1)/3}}}, or {{{3y - 9 = 2x + 2}}}, or {{{2x - 3y + 11 = 0}}}.


2.  Just plug in the coordinates into the equation:  -2*2 + k*-3 + 10 = 0, or -4 - 3k + 10 = 0, or
-3k + 6 = 0, or k = 2.