The option C) y = 15/x
a) y = 15 x is an example of direct variation, with proportionality constant = 15
b) is an example of linear variation (it is the equation of a straight line that does not pass through the origin)
c) y = 15/x => y*x = 15 = constant which is the characteristic of an inverse relation
d) y = x/15 is an example of an inverse relation, with proportion constant = 1/15
The most precise is 4.00 because that is equal to 10.16 cm and that is the most closes to an exact measurment.
Distance = Speed x time = 162 x 3 = 486 miles/hour
Answer: 486 miles/hour
<span>1.14×10^3 = 1.14 x 1,000 = 1, 140
answer
</span><span>1,140</span>
