PLZZZ HELP ME OUT THIS IS DUE TODAY Task 1 – Operations on the Number Line
(Variation of the above task)
A number line is shown below. The numbers 0 and 1are marked on the line, as are two other numbers a and b.

For each of the following expressions determine if the answer would be positive, negative, or zero. For each one PROVE HOW YOU KNOW.

1. a−1


Explanation:

2. a−2


Explanation:

3. b−1


Explanation:

4. -b−b


Explanation:

5. a−b

Explanation:

6. ab+1

Explanation:

7. b− a

Explanation:

8. a a-b x b


Explanation:

i gotchua

1. Negative , explanation: it is after the 0 line.

2. Negative, It is after the 0 line

3. Positive, It is before the 0 line

4. zero right on the 0 line.

5.zero right in the middle of the 0 line.

6.negative, a negative before the 0 line.

7.zero, a zero on the 0 line as well.

8. a positive as the o line and two numbers are together !

Hope this helped <3

the thermometer is precise but not accurate

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.