In exercise 5:
The x intercept is 12.
The zero of the function is the x-intercept of the graph. So, Zero = 12.
In exercise 5, Zero of the function is 12s.
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")