Khoảng đồng biến của hàm số $$y=x^2-4x+3$$ là:

D. $$\left(2;+\infty\right)$$ .

B. $$\left(-\infty;2\right)$$ .

C. $$\left(-2;+\infty\right)$$ .

Tập nghiệm S của bất phương trình $$x^2-x-6\le0$$

A. $$\left(-\infty;-3\right)\cup\left(2;+\infty\right)$$

D. $$\left(-\infty;-3\right]\cup\left[2;+\infty\right)$$

Tìm tập nghiệm S của bất phương trình $$x^2-4x+4>0$$

A. S = ℝ∖ $$\left\{2\right\}$$

C. $$S=\left(2;+\infty\right)$$ .

D. S = ℝ∖ $$\left\{-2\right\}$$

Trong mặt phẳng $$Oxy$$ , đường thẳng $$\left(d\right):\ ax+by+c=0,\ \left(a^2+b^2\ne0\right)$$ . Vectơ nào sau đây là một vectơ pháp tuyến của đường thẳng $$\left(d\right)$$ ?

D. $$\overrightarrow{n}=\left(a;b\right)$$

A. $$\overrightarrow{n}=\left(a;-b\right)$$

B. $$\overrightarrow{n}=\left(b;a\right)$$ .

C. $$\overrightarrow{n}=\left(b;-a\right)$$ .

Câu 16: Tọa độ giao điểm của $$\left(P\right):\ y=x^2-4x$$ với đường thẳng $$y=-x-2$$ là

D. $$M\left(1;-3\right),\ N\left(2;-4\right)$$

A. $$M\left(0;-2\right),\ N\left(2;-4\right)$$

B. $$M\left(-1;-1\right),\ N\left(-2;0\right)$$

C. $$M\left(-3;1\right),\ N\left(3;-5\right)$$

Câu hỏi Toán học

Authored by Anh Chu

Mathematics

12th Grade

Used 4+ times

AI Actions

Add similar questions

Adjust reading levels

Convert to real-world scenario

Translate activity

More...

Content View

Student View

16 questions

Show all answers

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Câu 1: Trong các hàm số sau, hàm số nào nghịch biến trên ℝ?

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

D. Không xác định.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Access all questions and much more by creating a free account

Create resources

Host any resource

Get auto-graded reports

Continue with Google

Continue with Email

Continue with Classlink

Continue with Clever

or continue with

Microsoft

Apple

Others

Already have an account?

Similar Resources on Wayground

20 questions

AP Statistics Vocabulary Quiz Chapters 1,2,3

Quiz

•

12th Grade

20 questions

Dominio Matemático 1

Quiz

•

12th Grade

15 questions

Trignometric Graphs

Quiz

•

10th - 12th Grade

20 questions

Discrete Distribution

Quiz

•

12th Grade - University

15 questions

Grade 12 Derivatives

Quiz

•

12th Grade

15 questions

Operasi Matriks Klas X

Quiz

•

12th Grade

15 questions

soal statistika Nidia

Quiz

•

11th Grade - Professi...

15 questions

Matematik Tahun 4 : Operasi Bergabung

Quiz

•

10th - 12th Grade

Popular Resources on Wayground

10 questions

5.P.1.3 Distance/Time Graphs

Quiz

•

5th Grade

10 questions

Fire Drill

Quiz

•

2nd - 5th Grade

20 questions

Equivalent Fractions

Quiz

•

3rd Grade

22 questions

School Wide Vocab Group 1 Master

Quiz

•

6th - 8th Grade

20 questions

Main Idea and Details

Quiz

•

5th Grade

20 questions

Context Clues

Quiz

•

6th Grade

20 questions

Inferences

Quiz

•

4th Grade

12 questions

What makes Nebraska's government unique?

Quiz

•

4th - 5th Grade

Discover more resources for Mathematics

10 questions

Factor Quadratic Expressions with Various Coefficients

Quiz

•

9th - 12th Grade

19 questions

Explore Probability Concepts

Quiz

•

7th - 12th Grade

43 questions

STAAR WEEK 1

Quiz

•

9th - 12th Grade

11 questions

Solving Quadratic Equations by Factoring

Quiz

•

9th - 12th Grade

20 questions

SSS/SAS

Quiz

•

9th - 12th Grade

6 questions

Equations of Circles

Quiz

•

9th - 12th Grade

17 questions

Writing Inequalities

Quiz

•

6th - 12th Grade

20 questions

Multiplication and Division Facts

Quiz

•

3rd - 12th Grade