Answer:
y = 8x + 15
Step-by-step explanation:
Step 1: Find slope of perpendicular line
Take the negative reciprocal of the 1st equation
m = 8
y = 8x + b
Step 2: Find b
7 = 8(-1) + b
7 = -8 + b
b = 15
Step 3: Rewrite perpendicular equation
y = 8x + 15
