When comparing prices for activities at a local recreation center, you notice that the center charges different prices on different days of the week. for example, riding a go-kart costs $10 on saturday and sunday and $5 on monday through friday.

The activity type would be the input and the cost would be the output. Because there are two different costs for the same activity, this would not be a function.

you are saying it as if a fact, not a question, but yes, you would be correct? ; )

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: