Функції

Функції

9th Grade

15 Qs

quiz-placeholder

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Функції

Функції

Assessment

Quiz

Mathematics

9th Grade

Hard

Created by

Me Ri

Used 1+ times

FREE Resource

15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 Розвяжіть графічно рівняння: 4x=4xРозв'яжіть\ графічно\ рівняння:\ \frac{4}{x}=4-x  

 x=1x=1  

 x=4x=4  

 x=1x=-1  

 Вирішень немає.Вирішень\ немає.  

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 ОДЗ: f(x)=x+4+2x+1ОДЗ:\ f\left(x\right)=\sqrt{x+4}+\frac{2}{x+1}  

 x(;1)(1;)x\in\left(-\infty;1\right)\cup\left(1;\infty\right)  

 x[4;1)(1;)x\in\left[-4;-1\right)\cup\left(-1;\infty\right)  

 x[4;)x\in\left[-4;\infty\right)  

 (;4)(1;)\left(-\infty;-4\right)\cup\left(-1;\infty\right)  

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 ОДЗ: f(x)=x5+5xОДЗ:\ f\left(x\right)=\sqrt{x-5}+\sqrt{5-x}  

 x(;5)x\in\left(-\infty;5\right)  

 x[5]x\in\left[5\right]  

 x(5;)x\in\left(5;\infty\right)  

 Вирішень немає.Вирішень\ немає.  

4.

OPEN ENDED QUESTION

2 mins • 1 pt

Побудувати графік функції:  y=6xy=-\frac{6}{x}  

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5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 ОДЗ: f(x)=x2+1ОДЗ:\ f\left(x\right)=\sqrt{x^2+1}  

 x(;1][1;)x\in\left(-\infty;-1\right]\cup\left[1;\infty\right)  

 x[1;1]x\in\left[-1;1\right]  

 xRx\in R  

Вирішень немає.

6.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

 ОДЗ: f(x)=5x+1x26x+8ОДЗ:\ f\left(x\right)=\frac{5x+1}{x^2-6x+8}  

 x4x\ne4  

 x4x\ne-4  

 x2x\ne2  

 x2x\ne-2  

7.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

Знайдіть точки перетину з OX та OY:  f(x)=x2+2x3f\left(x\right)=x^2+2x-3  

 (3;0), (0;3)\left(-3;0\right),\ \left(0;-3\right)  

 (1;0), (0;3)\left(1;0\right),\ \left(0;-3\right)  

 (3;0), (0;1)\left(-3;0\right),\ \left(0;-1\right)  

 (2;0),(0;3)\left(-2;0\right),\left(0;-3\right)  

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