Number 1 is 2
Number 2 is 1
Number 3 is -11
Number 4 is 7
What you do is see the value of x in each question and see if it satisfies the requirement.
If x is less than -2(like in number 1), you substitute it into that equation and solve for x
If x is greater than or equal to -2(like in number 2,3, and 4), you substitute the value of x into the second equation.
Hope you understand!
