Explanation for Question 22 From the Math (Calc) Section on the 2017 May Sat
Question 22 and 23 are related. 2 Let's first look at everything that they give us. 3 And then let's look at each individual question, we'll start with 22 for this 4 video. Um, they give us a lot here. 5 They give us first a chart, then a graph, 6 and then a paragraph. So the graph, 7 the chart, the first thing they give us tests is the annual production in 8 thousands of units of two products are two different factories. 9 Then the graph tells us the projected annual revenue from sales of product B. 10 So essentially how much money we make from Pete. 11 Um, and, and the exact size for that is price per unit in dollars. 12 And the Y is revenue in millions of dollars. 13 And now let's read the paragraph. Paragraph says a company makes and sells only 14 two products, P and Q, and makes all the products that factories w 15 and Z the table above shows. 16 The number of units of each product made in each factory during the year. 17 The function F above represents the projected annual revenue from sales of product B 18 as a function of the price per unit, where a and K are constants. 19 So let's look at our first question based on the graph of F which 20 of the following is a factor of F effects. 21 So we know that we're going to be looking at the graph. 22 They tell us based on the graph, and they want to know a factor 23 here. Essentially, we have a upside down parabola. 24 Um, we kind of like extended it. 25 It would look like this. If that looks a little more familiar, 26 that'...