A car can travel 476 miles on 14 gallons of gas. write an equation relating the distance to the number of gallons. how many gallons of gas does this car need to travel 578 miles . 6A. what is the equation?
6B. how many gallons of gas does this car need to travel 578 miles?

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:

middle maybe?

step-by-step explanation: