For 2.a the table is linear and the difference is 0.5
For 2.b the table is non- linear because if you divide y from x for each pair then it should all be the same number but it`s not.
My guess would be A.<span>It causes the lines to stand out so the reader reflects on their importance. But I'm only 98% sure on that so don't just rely on my answer lol. I still hope it helped a bit! Good Luck! :)</span>
Set the flash button to off.