The average cost of a car in 1990 was $9,437 and the average cost of a car in 2018 was $36,113. Which of the following graphs compares these totals more accurately? ( stem, leaf) display

A would be more accurate

Step-by-step explanation:

In 2018 the price of a car is $36,113 while it costs $9,437 in 1990. This means that the price increased from 1990 by;

= 36,113/9,437

= 3.8 times.

With the x axis already representing time, the y axis will represent price. Looking at the back of the cars(y axis), Graph A would therefore be more realistic as the car in 1990 looks almost 4 times as small as the car in 2018 unlike Graph B that has the 1990 car looking about 3 times smaller.

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: