Determine which relation is a function. 0 {(-5, 1), (-5,0), (-2, 1), (-1, 4), (6, 2)}
0 {(-5, 1).(-2, 0), (-1, 1), (2, 4), (6,3)}
O {(-5, 1), (-2, 0), (-2, 2), (3, 4), (6, 2)}
O {(-5, 3), (-2, 0), (-1, 2), (6, 4), (6,3)}

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.

answer is the third choice:

3x^5+4x^4+x^3+2x^2-10x-7=0

step-by-step explanation:

do your own work and don"t cheat.

step-by-step explanation: