Line p contains the points (6, y) and (4, 2) and has a slope of 1/4. Find y
Slope is rise / run or (y2-y1) / (x2- x1)
Substituting:
slope = 1/4 = (2-y)/(4-6) = (2-y)/(-2)
1/4 (-2) = 2-y
-1/2 -2 = -y
5/2 = y