笔者参加了2015年安徽省蚌埠市中考数学学科的阅卷工作,具体负责第21题的评判.现针对阅卷过程中发现的典型失误进行分析,浅谈教与学中的注意事项.1.试题呈现.如图1,己知反比例函数y=k_1/x与一次函数y=k_2x+b的图像交于A(1,8),B(-4,m).(1)求k_1,k_2,b的值;(2)求△AOB的面积; The author participated in the Bengbu City, Anhui Province in 2015 mathematics majors in the marking, in charge of the twenty-first issue of judgments are now facing the typical mistakes found in the marking process analysis, teaching and learning of shallow Notes .1 questions presented As shown in Figure 1, it is known that the inverse function y = k_1 / x and the linear function y = k_2x + b intersect at A (1,8), B (-4, m) ; (2) Find the area of ​​△ AOB;