Answer:
y = -1/2x + 5/2
Step-by-step explanation:
the slope of the perpendicular line will be the opposite reciprocal of 2, which is -1/2
now substitute (7,-1) into 'x' and 'y' in slope-intercept equation of a line:
-1 = 7(-1/2) + b
-1 = -7/2 + b
b = 5/2
