What is the relative frequency of the revenue earned by b& b motors from sales of mini trucks compared to the total sales revenue earned by all four companies?
sales ($ million)
companyconvertiblessuvs sedansmini trucksmarginal totals
allison 45 28 19 36 128
b& b motors 65 22 15 9 111
pluto cars 18 25 27 10 80
panther motors40 26 34 12 112
marginal totals168 101 95 67 431

guess at question:

a vertical line intersects the graph of g(x,y) = 0 at two points. what conclusion follows about the function f(x) implicitly defined by g(x,f(x)) = 0?

the domain of f(x) cannot include the x coordinate of any such vertical line.

informally, f(x) is not a function, and

g(x,y)=0 cannot be solved for y uniquely.

the relation r = {(x,y) such that g(x,y) = 0} is a function if

for all (a,b) ∊ r and (c,d) ∊ r, a=c implies b=d.

step-by-step explanation: