Practice time! (Be careful: Some have negatives!) 1. 4(x + 5) = 4( _) +41 __) =
+
write
2. 219 + p) = _(__) + ()
+
3. 4(2 + 10) = __(_
__+
4. -9(h + 11) = _1_
+ __(_) =
+
5. 5(x - 12) = _(__) + _(__) = __ +
6. 7(2x + 4) = _1_)+() = __+
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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.

146

step-by-step explanation:

↓↓↓↓↓↓↓↓↓

step-by-step explanation:

this is a parabola.