Is the following relation a function? two circles are shown, one labeled x and the other labeled y. the x circle contains the numbers 6, negative 1, and 4. the y circle contains the numbers 2, negative 1, and 3. arrows map numbers from x to numbers from y. there are arrows going from 6 to negative 3, from negative 1 to 2, from negative 1 to negative 1, and from 4 to 3.

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.