Hey there! We'll use our formula for slope given two points, m = y2-y1/x2-x1 Therefore, we have: 1/4 = -1-y/10-6 1/4 = 1-y/4 Multiply both sides by 4 1 = 1-y Add 1 to both sides 2 = -y Multiply both sides by -1 -2 = y Let's plug it back in to see if it works: -1-(-2)/10-6 = -1 + 2 / 4 1/4 Therefore, -2 is y. Hope this helps!