Find the constant of variation for the relation and use it to write an equation for the statement. then solve the equation.
if y varies directly as x and as the square of z, and y=- when x = 5 andz = 1, find y when x = 1 and z = 4.

In all honesty, there really is no “work” per say to show. mainly it’s just using the process of elimination. the question is asking which domain(s) would be the most appropriate for the function c(n). n is the number of observed vehicles so right away, 1, 2, and 3 can be eliminated.why? 1, 2 start in the negatives and therefore it is impossible to observe negative cars. so, #4 would be the best answer to the given problem.