Which situation would most likely be represented with a linear function? a) the speed of a car in a race b) the speed of a car on a highway c) the speed of a car driving around town d) the speed of a car driving across the country

Most races are run on a track that has the same beginning as the end. Think of it being circular. And such shape used for a track would make the answer in terms of velocity which has direction. A is not the answer.

B: Depends on the shape of the highway and whether or not it is congested. I wouldn't pick B.

C: Is never the answer. You stop and go and you are constantly changing direction. I'd pick

D: The direction is more of less constant and the speed is as well. Cities can be avoided.

hdjd

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: