How do you solve and graph #abs(r+1)<=2#?
See a solution process below:
The absolute value function takes any term and transforms it to its non-negative form. Therefore, we must solve the term within the absolute value function for both its negative and positive equivalent. We can rewrite this problem as:
Or, in interval notation
To graph this we will draw vertical lines at
The lines will both be solid lines because their inequality operators both contain an "or equal to" clause. This indicates both
We will shade to the regional between the lines to show the solution set: