7. When someone purchases a new car and begins to drive it, the mileage (meaning the number of miles the car has
traveled) Immediately increases. Let x represent the number of years since the car was purchased and y represent
the total miles traveled. The linear function that models the relationship between the number of years since
purchase and the total miles traveled is y = 15000x.
a. Identify and interpret the rate of change.

5 to the 2cube

Step-by-step explanation:

5x5 you take 5 and multiply 5 to get your answer

answer: the price of one pound cabbage = $ 0.8

the point (10,8) represents that the cost of 10 pounds cabbage is $ 8

step-by-step explanation:

since, here is a proportional relation between the number of pounds of cabbage (x) and the price in dollars (y).

therefore, we can write,

⇒ y = k x

where k is the constant of proportionality.

now, point (5,4) is in the line.

thus, it will satisfies the above equation of line.

⇒ 4 = 5 k

⇒ k = 0.8

thus, the equation of the line is,

y = 0.8 x

a) for x = 1,

y = 0.8

therefore, the cost of one pound of cabbage is 0.8 dollars.

b) in the below graph (10,8) represents that the cost of 10 pounds of cabbage is 8 dollars.