A:(3,5) B:(7,10) determine the midpoint of AB

(5,7.5)

Step-by-step explanation:

Students should refer to the midpoint formula to find the midpoint of AB.

A (3,5)

B (7,10)

Midpoint formula: X₁ + X₂ / 2, Y₁+Y₂ / 2

Equation: 7+3 / 2, 10+5 /2

1/2= 2

17/2 = 7.5

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step-by-step explanation:

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.