Answer:
a) 
b)
when 
Step-by-step explanation:
since y varies inversely with x.
We need to find the constant, k.
Let's use a point (x,y) on the curve.
We are given an (x,y)=(5,10):
Multiply both sides by 5:

.
So the equation is:

What is y when x=2?


Answer:
The friction that the car usually uses to stop(a rough and hard ground) was null and void, so the car spun uncontrollably.
Answer:
y and x stay constant
Step-by-step explanation:
linear equation