1. ## Inequality

I have 2 questions and i have their answers but i m unable to understand them.

Q-1) x=0 is the solution of the inequality?

Q-2) Temperatures = 4, 1, 0, -2, -1, -3, 1, -2, 3, -1
How many of these temperatures are with in 2.5 degree C of 1 degree C ?
Answer: -1, -1, 0, 1,1, 3

2. ## Re: Inequality

Originally Posted by haftakhan
I have 2 questions and i have their answers but i m unable to understand them.

Q-1) x=0 is the solution of the inequality?

Q-2) Temperatures = 4, 1, 0, -2, -1, -3, 1, -2, 3, -1
How many of these temperatures are with in 2.5 degree C of 1 degree C ?
Answer: -1, -1, 0, 1,1, 3
1) There are a lot of inequalities that have x=0 as the solution. $x^2 \leq 0$ is one example.

2) just find all the temperatures in the range of [1-2.5, 1+2.5]=[-1.5,3.5] degrees C. You don't specify if the temperatures you list are given in C of F. If they are in F then first convert them to C.