Mathematics
Grade10
Easy
Question
Write an inequality to represent the following:
The elevator went below ground level.
Let x represent the level that the elevator is on.
- x > 0
- x ≥ 0
- x < 0
- x ≤ 0
Hint:
We are given a statement. We have to write the expression of inequality for the given statement. We have to see the limits given for the required value.
The correct answer is: x < 0
The given statement is as follows:
The elevator went below ground level.
The variable x represents the level that is elevator on.
Ground level is mostly considered as level 0. And, the elevator went below ground level means, it is less than zero. So, the level can have value less than zero.
So, the variable x can be less than 0.
The sign for less than zero is “<0”.
The mathematical representation of the inequality is as follows:
x ≤ 0
This is the given inequality.
For such questions, we have to be careful about the limits.
