Can someone help please?

Step-by-step explanation:

y-4x=1

it crosses y-axis where x=0

y-4(0)=1

y=1

so point is (1,0)

y=2x+c

∵(0,-3) lies on it.

-3=2(0)+c

c=-3

so y=2x-3

∵(k,10) lies on it.

10=2k-3

2k=13

k=13/2

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.