How do you do this and what is the correct answer? simple and concise explanation !

Step-by-step explanation:

This is a neat question. I suggest that you graph it on desmos. You will lean a bunch by doing it. These are the graphs you should put on there.y = 1/(abs(x - a) - 1):In redWhen you use your down arrow, a new entry will be given you. You can use your mouse to operate the slider you get when you type a = 5so your next graph should be a = 5Use your down arrow again. Put in x = 4: Blue LineUse your down arrow again. Put in x = 6: Green Line

Be patient with this. Play with the sliders to see what they do. I believe you are correct, but I am not certain of the second union although it does look correct.

The graph I have enclosed is of what I have described in the steps above. Make sure you try it all out.

These are the multiples of 15 but what you are probably asking or what are the factors of 15