It looks like A. the n-values are evenly spaced. B. looks like there is a constant difference Im not exactly sure about C. and D. here.
Constant means unchanging. From \(\large\rm 18.75\) to \(\large\rm 25\) we saw a change of \(\large\rm 6.25\) but from \(\large\rm 25\) to \(\large\rm 29.50\) we saw a change of \(\large\rm 4.50\). Uh oh, the space between the C(n)'s isn't staying constant, right?
yeah not constant
So that makes B `not` true. Which automatically makes C `not` true because it's talking about a specific constant value.
For the function to be linear, `C(n) needs to have constant differences.` So what can you say about D?
So if there not staying constant then its not true?
Correct :) So D must be `not` true as well.
Only A? Yah good job!