Question

which of these situations can be represented by the opposite of -9
A.you walk down 9 flights of stairs
B.you climb up 9 flights of stairs
C.the temperature drops 9 f
D.you spend $9 on a book

Answer 1

Answer:

A

Step-by-step explanation:

Answer 2

The situation will be you climb up 9 flights of stairs. Then the correct option is B.

What is a sign convention?

Sign convention means the rule that is used when the sign is to be changed. It is applicable only when the equation is considered.

In the cartesian coordinate, if the point moves from the origin toward right or up, we considered it positive. And if the point moves from the origin toward the left or down, we considered it negative.

The situation can be represented by the opposite of -9 will be 9.

Then the situation will be you climb up 9 flights of stairs.

Then the correct option is B.

More about the sign convention link is given below.

https://brainly.com/question/14303096

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