slope form is y/x to find this subtract -5, 7 by -3, 5 to get -2, 2 and putting it in slope format....2/-2 which would be -1 or just -x (means -1x) so far we've found out.....y = -x (+b) b is what we need to find now so... plug in one of the coordinates 7=5+b (5 because --5 is positive 5) b=2 so FINALLY the equation would be y = -x + 2
