<p>For Question 8, Section 4, Test #3, P.532 in the Blue Book...</p>
<p>There's a diagram of a parabola. I don't understand why f(3) would = -1. </p>
<p>Any help would be greatly appreciated!</p>
<p>Actually, ignore the first post, I found out the answer. >_<</p>
<p>But can anyone solve Question 16 though on P. 535?</p>
<p>Thanks.</p>
<p>a+2b=(4b)(1.25)
5b=a+2b
a=3b
a/b=3/1</p>