Explanation for Question 11 From the Math (No Calc) Section on the 2019 May Sat
Question 11 says the table above give selected values of a polynomial 2 function P based on the values in the table, 3 which of the following must be a factor of P now something or 4 an X value is a solution in an equation when it produces an output 5 or Y value of zero. So all we need to do to find the 6 factors is defined. When does which X values create a zero 7 Y value and then factor backwards from that? 8 So let's start by finding our X values. 9 So if we look down the chart and just see when Y equals zero, 10 that happens right here and right here on the chart, 11 which means that X is equal to negative one, 12 which is right here. And X is equal to two. 13 After that, all we have to do is factor backwards. 14 So X over two becomes X minus two and X over one, 15 or X is equal. Negative one becomes X plus one. 16 So we know that the answer must be de.