Answer:
4x + 3
Explanation:
4 is the slope given so that is the first blank. Then put in -1 for x and y since that are the coordinates given. Now you should have -1 = 4(-1) + b. multiply-1 by 4 and get -4. Now move the -4 to the other side and you get -1 + 4. That equals 3 which is what b is equal to.