If you drive 40 miles in 1 houre, and 120 mils in 3 hours, your first fracton would be and your second fraction would have to be .
Therefore, your answer would be A. = .
the direct variation says that:
then the equation is of the form is given by:
where k is the constant variation.
from the given table:
consider any value of x and m(x)=y
x = 2 and m(x)=y = 3
substitute these value in ; we have;
divide both sides by 2 we get;
put x = -1 and m(x) = -1.5
substitute in the equation:
-1.5 = -1.5 true
therefore, the function m(x) represents a direct variation
graph of this function as shown below: