Select the correct answer. In which table does y vary directly with x? A. x y 1 -2 2 -4 3 -16 B. x y 1 -5 2 18 3 41 C. x y 1 26 2 52 3 78 D. x y 1 -7 2 -1 3 6

hreryryrranswer:

step-by-step explanation:

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: