<p>well, easy?</p>
<p>just wondering, what the hell was the answer for the one with f(s)<f(t), then it asks which cannot be like y=f(x)...</p>
<p>i guesssed c lol.</p>
<p>the answer was the only one that had a negative slope at a certain segment...i dont remember which one it was but it looked like a graph of, for example, y=(x^3)+3(x^2). it looks like a roller coaster</p>
<p>explanation:</p>
<p>f(s)<f(t) when s<t</p>
<p>lets say s=4 and t=6...so 4<6 and s<t...f(4), otherwise known as the y value when x=4, has to be less than f(6), the y value when x=6. in an example, we can say that f(4)=2 and f(6)= 10. we have f(4)<f(6) because 2<10. so now we have two points, (4,2) and (6,10). after connecting those points w/ a line, we see that the line has to have a poistive slope, that change in y will ALWAYS be positive and so will the change in x. that would make the graph have a positive slope throughout. however, on the correct answer, there are certain segments w/ a negative slope, which makes that graph the answer</p>