Ahealth food store makes trail mix using dried fruit and nuts. the cost of the dried fruit is $2.50 per pound and the cost of the nuts is $2.00 per pound the total cost to make the trail mix is $225. if the total cost can be represented by the equation 2.5x+2y=225 what does the term 2.5x represent?

for the first question it would be the second answer for the second question it would be the third answer and for the third question it would be the first answer

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: