Question

how do you find the x intercept

Answer 1

The x intercepts are where y equals zero, so set y=0 and find all values for x that satisfy the resulting equality. There may be more than one answer. For more solutions to textbook problems, be sure to check out http://www.slader.com/s/eWFrZXlnbGVl. I submit a lot of content there as well. (They even pay you if you help them out to add solutions).