The last finale question about function in mathematics, you never know it, and you lose points here every time. Urgent, is there any good way to take the math final exam for the senior high school entrance examination? In fact, I think the function finale of the senior high school entrance examination has a characteristic, and I like to combine it with geometry. The finale of the senior high school entrance examination is often not as difficult as the college entrance examination (for example, inequality is very flexible). Many senior high school entrance examinations are like "scaring people", which is a seemingly difficult question. In fact, they are all mechanically pieced together with simple questions. As long as you settle down and know what you are first and then what you are, you can still solve it. Moreover, function problems are often closely combined with geometry, so understanding geometry is very important. Resolution function comes from quantitative relations in geometry, such as Pythagorean theorem and triangle similarity. Mastering geometry knowledge, in many cases, "finale = a moderately difficult geometry problem+a moderately difficult function problem" is divided into two moderately difficult problems.

The above is my personal experience in the senior high school entrance examination. Of course, there are also many difficult questions that need a lot of practice.