I need help ?? Please

The grids have no numeric values, I'll assume values of 1,2,3, etc.

Answers below

Step-by-step explanation:

The Domain of a Function

Is the set of values the input variable x takes.

Range of a Function

It's the set of values the function takes when x moves into the function's domain.

A function is a relation between an input and an output set of values with the condition that every element in the domain relates only with one element in the range.

Question 4.

The input set is {-3,-2,-1,0,1,2}.

Every element of the input set is related to element(s) in the output set, thus the domain is: {-3,-2,-1,0,1,2}.

The output set is {-2,0,2,4}

Every element of the output set is related to element(s) in the input set, thus the range is: {-2,0,2,4}.

Since each element in the domain relates to only one element in the range, this is a function.

Question 5:

Domain: {-3,-1,1,23}

Range: {-3,-1,0,2,3}

The input element -1 is related to elements -1 and 2. Thus this is NOT a function.

351.23

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.