If ad : ab = 2 : 5, the coordinates of point f are (4.4, -4.6)(4.4, -3.6)(4.6, -4.6)(4.6, -3.6). point e has the coordinates (2.8, -3), and the coordinates of point d are (4.4, -2.4)(4.4, -1.4)(4.6, -2.4)(4.6, -1.4).

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:

the correct option is b

step-by-step explanation:

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