Write a situation in which positive and negative numbers are used to describe values that have opposite meaning. what does 0 represent in this situation you created? (4 points)

Answer with explanation:

≡First Example

I Credited an amount of  $ 10,000 in my account is represented by =+10,000

I withdrew an amount of  $ 10,000 from my account is represented by = -10,000

Additive inverse of 10,000= -10,000

Additive inverse of -10,000= 10,000

→From point of view of example that i have wrote, 0 represents , no balance in my account.

≡Second Example

50 students inside the class is represented by =+50

50 students outside the class is represented by = -50

Additive inverse of, 50= -50

Additive inverse of ,-50=+ 50

→From point of view of example that i have wrote, 0 represents , neither the students are inside or outside the class.

In Mathematical terms , 0 is additive Identity for Integers.

region b will make the inequalities y < 2x + 1 and y > -x - 2 true ⇒ answer a

step-by-step explanation:

* lets study the graph and the inequality to solve the question

- the inequality y > -x - 2

∵ the form of the inequality is y > mx + c , m is the slope of the line

  and c is the y-intercept (the line intersect y-axis at point (0 , c)

∴ c = -2 that means the line intersect the y-axis at point (0 , -2)

∵ the sign of the inequality is >

∴ we shad the part over the line

  region a and b

- the inequality y < 2x + 1

∵ the form of the inequality is y > mx + c , m is the slope of the line

  and c is the y-intercept (the line intersect y-axis at point (0 , c)

∴ c = 1 that means the line intersect the y-axis at point (0 , 1)

∵ the sign of the inequality is <

∴ we shad the part under the line

  region b and c

∵ the common region between the two lines is region b

∴ region b will make the inequalities y < 2x + 1 and y > -x - 2 true