BUS 111 Lecture 9: BUS_111_0005_10-14-15
Document Summary
Def: a function is a quadratic if and only if it can be written as ax2+bx+c= f(x) with. Fact: the graph of any quadratic is called a parabola. The parabola opens upwards if a 0. (cid:498)a(cid:499) is positive, and opens downwards if (cid:498)a(cid:499) is negative. Def: the highest or lowest point on a parabola is called the vertex. Fact: every parabola is symmetric about the line x= -b/2a. Recall: the zeros (or roots) of any quadratic can be found by setting the quadratic to zero and solving for x using wither factoring, solving the square, or the quadratic formula. All of this information about quadratics makes them easy to graph. You know that at 1,600/month/space, you will rent 40 out of 60 available spots. Furthermore, for each increase in price, one store will no longer rent from you. B/2a -(-600)/2(-25) = 600/-50= -12 f(-12)= 67,600 (-12,67,600) should be the rent/month/space to maximize revenues.
