Duncan was the 37th caller to the radio station 103.7 The Party and won
tickets to see his favorite band,
Soulful Eyes! To get to the concert, he
rides the green line train for four
stops. Then he rides the red line train
for 15 minutes. In all, Duncan spends
25 minutes on the train to get to the
concert.

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:

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step-by-step explanation: