Answer:
y = 7/6 * x - 1/6
Explanation:
6x + 7y = 126
y = (- 6/7) * x + 18
slope: -6/7
A line perpendicular to another has a slope that is the negative reciprocal of the slope of the other line
slope' : 7/6
y = mx + b
8 = 7/6 * 7 + b
b = (48-49) / 6 = - 1/6
equation: y = 7/6 * x - 1/6