<p>p. 551 </p>
<h1>15: The first thing I did was look at the graph. Okay, so I’m looking for an equation for a function? No, that couldn’t be. The darn thing doesn’t even pass the vertical line test! Thus, I looked for input/output (as that is truly what an equation for a function is). (t, w) is used as (x, y)…so if my input is x=1, what do I get out of it? The same thing! Therefore, in function notation…f(x)=1</h1>
<p>t(1)=1
The answer is A.</p>