Cars lose value the farther they are driven. A random sample of

11

1111 cars for sale was taken. All

11

1111 cars were the same make and model. A line was fit to the data to model the relationship between how far each car had been driven and its selling price.

Which of these linear equations best describes the given model?

Based on this equation, estimate the price of a car that had been driven

56

5656 thousand kilometers.

i think it might be a but you might want a second opinion

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:

hard

step-by-step explanation: