It has been determined that the cost of producing x units of a certain item is 10x+630. The demand function is given by p=D(x)=51−0.2x.

fourth month

step-by-step explanation:

it is the one with the most keychains.

use this formula:

p(a\b) = p(a and b)/p(b).

take it from here.

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: