Which of the following is true of vertex-edge graphs? a.)they can model real-world problems. b.)they can all be solved. c.)euler paths are the same as hamilton paths. d.)all vertices must be used once in hamilton circuits. i didn't know this one, honestly i don't care at the moment. so me on this..

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:

correct answer is c. just did it

step-by-step explanation: