I need help ASAP please!

i believe the answer your looking for would be A) (-infinity, 4)

A) (-inf,4]

Step-by-step explanation:

The range of a function is all of the y-values that are appropriate for the function.

The range has a global maximum of 4, so this is the endpoint of the range.

Notice how the range continues down to negative infinity, so this is the start of our range, and we always mark infinity in parentheses because infinity is not a number.

So the correct interval notation would be (-inf,4] where the bracket means 4 is included but -inf is not since we mentioned earlier it isn't a number.

all it means is function 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.