Question

Below is the graph of equation y= |x+2|-1. Use this graph to find all values of x such that... y=0

Answer 1

x= -3 and x= -1

Explanation:

when x= -3 y= |-3+2|-1 = |-1|-1 = 1-1=0

and when x= -1 y = |-1+2|-1 = |1|+1=0

This sign |x| means that all values inside it are positive