Weekly Blog Post #8 domain and range

When righting the domain and range of a graph you have to put the lowest x value is less than or equal x and that the greatest x value is greater than or equal to x. you do the same thing for the range but it has a y value instead of an x value. If one of the lines has an arrow on it that means that it goes infinitely in that direction when this happens you put an ER instead of a value

in this picture the domain is 0 ≤ x ≤ ER

And the range is ER ≤ y ≤ 0