The slope of these points is 4/3
-2y>12x-42
y<21-6x
so a is true
Answer:
John is 9.21 km form the school.
Step-by-step explanation:
John leaves school to go home. His bus drives 6 kilometres north and then goes 7 kilometres west. It is required to find John's distance from the school. It is equal to the shortest path covered or its displacement. So,

So, John is 9.21 km form the school.