Which statement is true about the graphs shown?

A. Only graph A represents a proportional relationship

B. Only graph B represents a proportional relationship

C. Graph A and B both represents a proportional relationship

D. Graph A and B both representba non proportional relationship

a. the residual plot for model 1 has a random pattern and is a good fit for the data.

y + 11 = (1/4)(x + 16)

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:

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