The fast-traveling female partner fights back

Chapter 4 The Splendid Daughter of a Rich Family 3 [Turn Over, White Lotus]

"Jun Yi, what do you think if I fall in love with the target during the strategy?"

[The host doesn’t have to worry, the system can extract the host’s emotional memory after the completion of the strategy task, save it in the crystal ball, and return it to the host when the host’s endurance is sufficient. 】

"Ah, Junyi, you are so kind! (≧▽≦)"

"Mu Qiubai! Let's solve this problem!" The math teacher pushed the glasses on the bridge of his nose and said with a frown.

"..."

Mu Qiubai strolled up to the podium, looked at the questions, and picked up the chalk to answer.

For a while, the classroom fell silent.Only the sound of chalk writing on the blackboard.

[The following is a math pretentious question, you can skip it if you don’t want to read it, it has nothing to do with the plot~]

Point A (-1, 0) and point B (4, 0) in the plane Cartesian coordinate system, the semicircle with AB as the diameter intersects the positive semi-axis of the y-axis at point C. (O is the origin)
(1) Find the coordinates of point C?
OC=√[(0.5AB)?-(4-0.5AB)?]=2
∴ The coordinates of point C are (0, 2)

(2) Have you ever found the analytical formula of A, B, and C?

设y=a（x+1）（x-4），把（0，2）代入得a=-1/2
∴y=-1/2（x+1）（x-4）=-1/2x?+3/2x+2
(3) Under the condition of (2), if there is a point D on the parabola so that the quadrilateral BOCD is a right-angled trapezoid, what is the analytical formula of the straight line BD?

∵ Known from the image, DC‖x-axis, the quadrilateral BOCD is a right-angled trapezoid

∴点D的纵坐标为2，当y=2时，-1/2x+3/2x+2=2，x1=0，x2=3
The coordinates of point D are (3, 2)

∴ The straight line BD is y=-2x+8
(4) Let point M be any point on the parabola, pass through point M and make MN perpendicular to point N. If there is only one point P on line segment AB, make angle MPN a right angle, and find the coordinate of point M.?

Set the coordinates of point M as (x, y). Knowing from the image, when y=±1/2x, there is only one point P on the line segment AB, so that ∠MPN is a right angle

∴-1/2x?+3/2x+2=±1/2x
∴x=1±√5或x=2±2√2
∴点M坐标为（1+√5，1/2+1
The math teacher looked at Mu Qiubai with satisfaction: "Student Mu is very good, he is a role model for the students, go back to your seat."

The students all cast admiring glances at Mu Qiubai.

The so-called "stand out from the crowd", it is difficult for Mu Qiubai to ignore the jealous eyes from Xia Qiange's position.

[Ding, the heroine's favorability with the host is -10, and the current favorability with the host is -5; the heroine's favorability with the male protagonist is 30]

"Wait, wait!! Why is the heroine's favorability for me reduced twice?! Also! Why is the heroine's favorability so high!!!! They haven't met yet, right?!"

[Master host, have you read the favorability reminder carefully? (◎_◎;) Halo]

"Maybe not."

【Ah?Host, please take the task seriously (‵ ′).The heroine's favorability towards the host is because everyone has a love for beauty. Seeing that you are a good-looking girl with a good temper, she has a good impression of you. 】

[Because the host is too good and hot, the hostess became jealous of the host, so the favorability dropped again and again.]

[The female lead and the male lead haven’t met yet, but they have a good impression of the male lead because the female lead has a senior sister who is in Class A of the third year of high school with the male lead. She often hears the seniors mention the male lead, and praises the male lead for his high IQ. As time goes by... 】

Regarding the decline in the heroine's favorability, Mu Qiubai said that she is not uncommon for Bai Lianhua's favorability.The male lead doesn't know the female lead at all, Mu Qiubai said hehe. . .In the previous life, the male lead had sex with the female lead, but it's a different matter in this life with her.

Oh hehe, roll over, white lotus!
　〖Digression〗

　　That's right, folks, this is my draft for two days.I just registered today, so I sent them all in one go, and I will code them later.

　　
　
(End of this chapter)