Question 1016062
the absolute sign if | which is shift \ which is the key just to the right of ] on my keyboard.


the same symbols is used in front and behind the expression.


your equation becomes E(a) = |a-60|.


the domain of the function is all real values of x.


the range of the function is all real values of y greater than or equal to 0.


y will be equal to 0 when x is equal to 60.


the graph of the equation looks like this:


look below the graph for further comments.


<img src = "http://theo.x10hosting.com/2016/012704.jpg" alt="$$$" </>


the graph of this equation is symmetric about the line x = 60.


as you can see, when the value of y = 1000, x is equal to -940 or x = 1060.


x = -940 is 1000 units away from x = 60.


x = 1060 is 1000 units away from x = 60.