"Look, you didn't draw the graph of this function equation correctly." Mo Jingchun picked up a piece of draft paper from the side and drew a function graph according to the requirements of the question, which was completely different from the function graph that Jiang Li had drawn before.
"This question is playing tricks on you."
Mo Jingchun pointed to the key point on the test paper. "The y value here is not the maximum, but three-quarters. Check it out with the answer and see if it's the same as what I'm doing now."
Jiang Li looked at the problem-solving steps that Mo Jingchun had written on the draft paper, and carefully read them over on his own.
It was obvious that Mo Jingchun's answer, both in terms of the idea of answering the question and the auxiliary function graph, was much better than the steps he had drawn after thinking hard for a long time.
Jiang Li's mind seemed to be suddenly opened up. He grabbed the test paper, took out a red pen and quickly wrote down the correct answer as well as the final result and options of this function problem.
“In fact, this question mainly combines the concept and properties of functions, and also involves some operations such as transformation and composite functions.
Mo Jingchun said calmly, "Actually, I don't think the overall difficulty is that high."
Although Jiang Li remained calm on the surface, he was not calm in his heart. Although Mo Jingchun was not wrong, most of the function questions were based on this. Besides, not everyone had such a sensitive talent for mathematics like Mo Jingchun.
Mo Jingchun moved closer to Jiang Li again, and their hair touched each other.
Jiang Li subconsciously tried to distance herself from him, but the latter grabbed her shoulders.
"Don't move. I'm going to give you a universal formula. It's the experience I've accumulated over the years in solving function problems instantly."
Mo Jingchun had a wicked smile on his face, and the black pen in his right hand stopped on a clean page of draft paper.
After hearing what Mo Jingchun said, Jiang Li lowered his head and looked at the formula he wrote on the draft paper.
"Come on, try again using the ideas provided by this formula." Mo Jingchun finished writing it in a few strokes and then threw it to Jiang Li.
Jiang Li took the draft and looked at the long list of formulas on it. After the tip of the pen paused briefly on the test paper, it began to slide.
"How is it? It's a lot easier using my method, right?" Mo Jingchun closed the black pen again and was spinning it rapidly on the fingertips of his right hand.
Jiang Li nodded, and followed the idea using the formula given by Mo Jingchun. The problem that was very difficult just now was now as if he had suddenly realized something. It was no longer difficult for him to solve, and he got the correct answer in no time.
Of course, this does not rule out the possibility that the correct answer is known.
"Come on, next question."
As Mo Jingchun spoke, he opened the monthly math test paper that was spread between them and came to the big questions at the back.
At this time, more than an hour had passed since they got out of school in the afternoon, and the originally bright sun had become dim.
From a distance, the two people's heads were leaning against each other. Jiang Li's expression was very serious, and Mo Jingchun's explanation was also very detailed. Every step was able to clearly explain the points that Jiang Li didn't understand.
Jiang Li's eyes were bright, revealing his deep interest in learning. Mo Jingchun's eyes flickered, as if affected by the gradually dimming sunset. He focused more on Jiang Li's fair and beautiful face.
"Let's leave it like this for now."
Unexpectedly, Jiang Li stopped Mo Jingchun's action and said, "It's too late. Let's go back first."
Mo Jingchun smiled, "I was planning to fight with you until we were locked up, why are you here so early today?"
Maybe it was because of the dim sunset, but after hearing Mo Jingchun's words, Jiang Li's face turned slightly red.
These days, after evening self-study, Mo Jingchun always stays to study with Jiang Li, and has been doing this for several days.
But sometimes, they were not just studying. Mo Jingchun always had a lot of strange ideas. He would pull Jiang Li aside to chat, or run to other places in the school.
"Today is Saturday," Jiang Li lifted her black hair, "I can't let you stay with me in school for so long again."
"Then let's go."
Mo Jingchun simply pulled up the stool, stood up from his seat and walked out the back door.
After Jiang Li packed up simply, he followed Mo Jingchun. After a while, the two of them walked out of the Dream Yuanming Building and came to the road leading to the school gate.
"By the way, do you want to go out and play together tomorrow?" Mo Jingchun asked Jiang Li who was beside him while walking on the road.
"No, you guys go." Jiang Li shook his head and refused.
"What?" Mo Jingchun raised an eyebrow. "Anything else going on on Sunday?"
Facing Mo Jingchun's question, Jiang Li did not say anything, but just stood silently beside him as they walked through the gate of Hangzhou No. 3 Middle School and came out.
Mo Jingchun shook his head helplessly when he saw Jiang Li's expression. "Forget it, but don't say we didn't bring you along."
"Yeah." Jiang Li nodded.
Jiang Li and Mo Jingchun crossed the road together and came to the bus stop opposite.
"Then I'll be leaving first."
Mo Jingchun stood there waiting for the bus, while the latter picked up the bicycle placed next to him.
Mo Jingchun nodded and made an OK gesture.
Jiang Li sat on the bicycle, pedaling and riding towards the setting sun.
"Tsk," Mo Jingchun sighed softly as he watched Jiang Li's leaving back. He had just come on behalf of Xu Fan, Mo Ling and the others to invite Jiang Li, but the latter still refused to give him face as usual.
Mo Jingchun shook his head slightly at the bus stop. They were obviously just as precocious, but the latter seemed even colder than him.
While the bus was still not arriving, Mo Jingchun turned on his cell phone. Yes, he brought his cell phone to school today.
Although doing so violates school rules, Mo Jingchun is a repeat offender and this school rule has long lost its deterrent effect on him.
In addition to the messages from Jiang Li, Xu Fan, Mo Ling and some other messy messages on WeChat, there was a message sent by a person with a gray avatar in the middle, and his own notes were also very simple, with only two words.
Not allowed.
Mo Jingchun's eyes drooped slightly and he clicked on his profile picture.
There was only one transfer in the chat box between the two people, and no other words were exchanged.
Mo Jingchun was used to it and accepted the transfer. Then he exited the chat box and clicked on Teacher Liu's WeChat avatar.
Jiang Li had not yet returned the money he spent in the hospital to Teacher Liu, so Mo Jingchun rounded up the amount on WeChat and returned it to Teacher Liu.
After doing all this, Mo Jingchun put away his phone and waited quietly for the bus to arrive.
Jiang Li was riding his bicycle, thinking about tomorrow's part-time job. After a while, he returned to the Seventh Welfare Home. After riding his bicycle into the home, Jiang Li went upstairs and returned to his residence in this city.
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